1sixth plus 2 thirds
**worth 10 points**

1/6 + 2/3 = ?

Step-by-step explanation and To add fractions, you must have commen denomionators, so what is the least commen multiple of 6 and 3? You should say 6 because they are the lowest number that are equal, and the same. You should have 1/6 + 4/6=? You do not add the denomionators, they are still the number 6. But you add the numerators, so 4+1=5, so your answer is 5/6.

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !