Sagot :
Answer:
I suppose Tessa is not going to eat the cassava cake.
So, Melba got 4/7 of the cake
Sonia got 4/7 - 2/5 = x
Anya got 1 - (4/7 + x)
Let us first find the value of x.
4/7 - 2/5 = (20-14)/35 = 6/35
Sonia got x=6/35 of the cake. That's way too little. How unfair.
Let us now calculate Anya's share.
1 - (4/7 + 6/35)
1 - (20+6)/35
1 - 26/35
35/35 - 26/35
9/35
Anya got 9/35 of the cake. Still too little. -_-