Question

3/8=a/2= 15/b
find a and b​

Answer 1

Answer:a=3/4 and b=40

Explanation:

To find 3/8=a/2=15/b

Firstly find a

3/8=a/2

Cross multiply

8a=3×2

8a=6

a=6/8

a=3/4

To find b

a/2=15/b

Where a=3/4

3/4/2=15/b

3/8=15/b

Cross multiply

3b=120

b=40

a=3/4 and b=40

Answer 2

Step-by-step explanation

`(3)/(8)=(a)/(2)\\\\(3)/(8)*2=a\\\\a=(3)/(4)\\\\\\(3)/(8)=(15)/(b)\\\\ 3*b=15*8\\\\b=(15*8)/(3)\\\\b=5*8\\\\b=40`