1/3 + 1/5 step by step

8/15

Step-by-step explanation:

the denominators are different so you need to find the lowest common multiple which is 15

you times 3 by five so you have to change the 1 into 5

you times 5 by three so you have to change the other numerator to 3

so it becomes:

5/15 + 3/15= 8/15

8/15

Step-by-step explanation:

Here,

1/3 + 1/5

LCM of denominator = 15

1/3 × 5/5 + 1/5 × 3/3

= 5/15 + 3/15

= 8/15 ans

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour