Question

5
9
of a piece of metal weighs 7 kg. What is the weight of
2
7
of the metal?

Answer 1

5/9×x=7
x=7×9/5
x=12.6
so 2/7of 12.6=12.6×2/7
=3.6

Answer 2

Metal Weight

5/9 7kg

2/7 xkg

We Know that

5/9:2/7: : 7:x

5/9÷2/7=7/x

5/9×7/2=7/x

35/18=7/x

35x =18×7

x =18×7÷35=18/5=3_3/5

So...

2/7=3_3/5kg.