Question

Хелп! ( 7 57 : 3 35 - 17) : 1 13 =?

Answer 1

( 7 57 : 3 35 - 17) : 1 13 =1 1/2
1)7 5/7:3 3/5=54/7*5/18=15/7
2)15/7-1/7=14/7=2
3)2/1*3/4=3/2=1 1/2