17:(3/5+1/4)+(7/8-1/4)*(4/5)^2

Question

17:(3/5+1/4)+(7/8-1/4)*(4/5)^2

Answer 1

3\5+1\4=12\20+5\20=17\20
7\8-1\4=7\8-2\8=5\8
17:17\20=17*20\17=20
5\8*(4\5)^2=5\8*(4\5)^2=5\8*16\25=2\5+20=20,4