А)3/7× (1/3 + 4/9)б)4/5 - 1/4 ÷ 5/6

Question

А)3/7× (1/3 + 4/9)
б)4/5 - 1/4 ÷ 5/6

Answer 1

А) 3/7×(1/3+4/9)=1/3
б) 4/5-1/4÷5/6=1/2

Answer 2

А) 3/7*(1/3+4/9)=1/3
1/3+4/9=3/9+4/9=7/9
3/7*7/9=1/3

б) 4/5-1/4:5/6=1/2
1/4:5/6=3/10
4/5-3/10=8/10-3/10=5/10=1/2