Question

Решите по действиям:

б) (7/10x1 1/10):(3 3/10x1 4/10)=

в)(4/7-1/3+5/6)x42=

г)(1 1/4)x(2 1/5+1 4/10)=

Answer 1

б) (7/10x1 1/10):(3 3/10x1 4/10) = (7/10x11/10):(33/10x14/10)= 77/100 : 33×14/100 = 77×100 / 100×33×14 = 11×7 / 11×3×7×2 = 1 / 6