Question

Найдите значение выражения помогите 3 4/7-2 3/5
6 5/6+2 3/8
4 5/14+(5 1/12-3 4/21

Answer 1

3 4/7-2 3/5= 1 4/7-3/5=1 20/35-21/35=55/35-21/35=34/35
6 5/6+2 3/8=6 20/24 + 2 9/24=8 29/24= 9 5/24
4 5/14+(5 1/12-3 4/21) =4 5/14+( 5 7/84 - 3 16/84)=4 5/14+( 4 91/84-3 1684)= 4 5/14+1 75/84=4 30/84+1 75/84= 5 105/84=6 21/84=6 1/4=6, 25