Mathematics, 29.06.2019 05:00 ueuwuwj

Mid chapter checkpoint 5th grade chapter 6 awser key

Answers: 1

Show answers

Answers

Answer from: dayaan009

QUESTION 1

A common multiple is a number that is a multiple of two or more numbers.

For instance 18 is a common multiple of 2 and 3.

This is not the only common multiple.

QUESTION 2

A common denominator is a common multiple of two or more denominators.

For instance a common denominator for $\frac{1}{2} ,\frac{1}{4}$

is 4

This is also not the only common denominator.

QUESTION 3

We were given;

$\frac{8}{9}+\frac{4}{7}$

We want to estimate the sum of the given fractions.

We collect LCM to obtain,

$=\frac{8\times 7+9\times4}{63}$

We multiply out in the numerator to obtain,

$=\frac{56+36}{63}$

We perform the addition in the numerator to obtain,

$=\frac{92}{63}$

We express the final answer as a mixed number to obtain,

$=1\frac{29}{63}$

QUESTION 4

The given expression is $3\frac{2}{5}-\frac{5}{8}$ .

Let us change the first first mixed number into an improper fraction to get,

$=\frac{17}{5}-\frac{5}{8}$

We collect LCM of the denominators which is 40 to obtain,

$=\frac{8\times17-5\times5}{40}$

We now multiply out in the numerator to get,

$=\frac{136-25}{40}$

We carry out the subtraction in the numerator to get,

$=\frac{111}{40}$

We express the final answer as a mixed number to obtain;

$=2\frac{31}{40}$

QUESTION 5

The given fraction is $1\frac{5}{6}+2\frac{2}{11}$ .

Let us first of all change each mixed number to improper fractions

$=\frac{11}{6}+\frac{24}{11}$

We now collect LCM of the denominators to obtain,

$=\frac{11\times11+24\times6}{66}$

We multiply in the numerator to get,

$=\frac{121+144}{66}$

This gives,

$=\frac{265}{66}$

$=4\frac{1}{66}$

QUESTION 6

The given fractions are;

$\frac{1}{6},\frac{1}{9}$ .

The least common denominator is .

We obtain the equivalent fraction by multiplying the denominator and numerator of each fraction by a common factor that gives 18 in the denominator.

$\frac{1\times3}{6\times3},\frac{1\times2}{9\times2}$ .

This gives us;

$\frac{3}{18},\frac{2}{18}$ .

QUESTION 7

The given fractions are;

$\frac{5}{6},\frac{3}{8}$ .

The least common denominator is .

We obtain the equivalent fraction by multiplying the denominator and numerator of each fraction by a common factor that gives 24 in the denominator.

$\frac{5\times4}{6\times4},\frac{3\times3}{8\times3}$ .

This gives us;

$\frac{20}{24},\frac{9}{24}$ .

QUESTION 8

The given fractions are;

$\frac{3}{8},\frac{3}{10}$ .

The least common denominator is .

We obtain the equivalent fraction by multiplying the denominator and numerator of each fraction by a common factor that gives 40 in the denominator.

$\frac{3\times5}{8\times5},\frac{3\times4}{10\times40}$ .

This gives us;

$\frac{15}{40},\frac{12}{40}$ .

QUESTION 9

The given fractions are;

$\frac{2}{5},\frac{1}{10}$ .

The least common denominator is .

We obtain the equivalent fraction by multiplying the denominator and numerator of each fraction by a common factor that gives 10 in the denominator.

$\frac{2\times2}{5\times2},\frac{1\times1}{10\times1}$ .

This gives us;

$\frac{4}{10},\frac{1}{10}$ .

QUESTION 10

The given fractions are;

$\frac{1}{9},\frac{5}{12}$ .

The least common denominator is .

We obtain the equivalent fraction by multiplying the denominator and numerator of each fraction by a common factor that gives 36 in the denominator.

$\frac{1\times4}{9\times4},\frac{5\times3}{12\times3}$ .

This gives us;

$\frac{4}{36},\frac{3}{36}$ .

QUESTION 11

The given fractions are;

$\frac{1}{3},\frac{2}{7}$ .

The least common denominator is .

We obtain the equivalent fraction by multiplying the denominator and numerator of each fraction by a common factor that gives 21 in the denominator.

$\frac{1\times7}{3\times7},\frac{2\times3}{7\times3}$ .

This gives us;

$\frac{7}{21},\frac{6}{21}$ .

QUESTION 12,

The given fraction is

$\frac{11}{18}-\frac{1}{6}$

The least common denominator is .

We collect LCD to obtain,

$=\frac{11-3\times1}{18}$

This simplifies to;

$=\frac{11-3}{18}$

$=\frac{8}{18}$

$=\frac{9}{4}$

QUESTION 13

The given fraction is

$\frac{2}{7}+\frac{2}{5}$

The least common denominator is .

We collect LCD to obtain,

$=\frac{2\times5+2\times7}{35}$

This simplifies to;

$=\frac{10+14}{35}$

$=\frac{24}{35}$

QUESTION 14

The given fraction is

$\frac{3}{4}-\frac{3}{10}$

The least common denominator is .

We collect LCD to obtain,

$=\frac{3\times5-3\times2}{20}$

This simplifies to;

$=\frac{15-6}{20}$

$=\frac{9}{20}$

Answer from: Quest

i am not sure :

step-by-step explanation:

Answer from: Quest

none.

step-by-step explanation:

m1=5

−

b=-1

find the slope and y-intercept of the second equation.

tap for more

m2=0

−

b=-6

compare the slopes

m of the two equations.

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m1=5,m2=0

Another question on Mathematics

Mathematics, 21.06.2019 21:20

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.

Answers: 2

Answer

Mathematics, 21.06.2019 23:30

Dots sells a total of 279 t-shirts ($2) and shorts ($4). in april total sales were $670. how many t-shirts and shorts did dots sell?

Answers: 1

Answer

Mathematics, 22.06.2019 00:30

If the perimeter of the square equals the perimeter of the regular pentagon. each side of a pentagon is 16cm long. how long is each side of the square?

Answers: 3

Answer

Mathematics, 22.06.2019 06:30

:) i will answer any of your question +20 ponits

Answers: 2

Answer

You know the right answer?

Mid chapter checkpoint 5th grade chapter 6 awser key...

Questions