Question

1)(3 1/5 + 2 1/4) * 5 - 25 5/6
2)7 6/7 * 1 9/11 + 3 1/7 * 3/11

Answer 1

3 1/5+2 1/4=16/5+9/4=(64+45)/20=109/20

109/20*5=109/4

109/4-25 5/6=109/4-155/6=(327-310)/12=17/12=1 5/12

7 6/7*1 9/11=55/7*20/11=100/7

3 1/7* 3/11=22/7*3/11=6/7

100/7+6/7=106/7=15  1/7