Question

решите по действиям : (57*2целых13*56-1):(1-78*1целых35*314)= ? ПО ДЕЙСТВИЯМ!!!!!!

Answer 1

(5/7× 2 1/3 × 5/6 - 1 = 1 2/3
5/7 ×2 1/3 = 5/7 × 7/3= 5/3
5/3 × 5/6 =30/18=10/6=2 4/6 =2 2/3
2 2/3 - 1 = 1 2/3

( 1 - 7/8 × 1 3/5 × 3/14) = 1/2
7/8 × 1 3/5= 7/8 × 8/3 =7/3
7/3 × 3/14 = 3/6=1/2
1 -1/2 = 1/2