Question

the product of two fraction is 9.if one of the fraction is 2 1/7 find the other fraction

Answer 1

2 1/7=15/7
let the other fraction be x
so the sum of x and 15./7=9.0
x+15/7=9.0
x=9-15/7
x=(63-15)/7
x=48/7=6 6/7
here 6 is the whole no. and 6/7 is the proper fraction

sorry this is for addition for product
it is 
x*15/7=9.0
x=9*7/15=63/15=4 3/15=
3    =4 1/5
hope  in heloed u

Answer 2

Converting 2  1/7, into improper fraction
=15/7.
Let the other number be x.
15/7 X x = 9
x = 9 X 7/15
x = 63/15
x = 21/5 =  1 1/5
Hence the number is 21/5 or 4 1/5