Three girls shared a cake .A gets 3/8 of the cake , B gets 1/4 of the remainder . How much does C get ?

Answer 1

3/8 + (1/4)(5/8) + x = 1
how about multiplying each term by 32
12 + 5 + 32x = 32
32x = 15
x = 15/32

check:
3/8 + 5/32 + 15/32
= 32/32 = 1