Question

一个数的百分之75是3分之2,这个数的9分之7倍是多少 方程

Answer 1

[(2/3) / 75%] * (7/9)
= [(2/3) / (3/4)] * (7/9)
= [(2/3) * (4/3)] * (7/9)
= (8/9) * (7/9)
= 56/81