(3+7/11)×1/4-1/22

------------------------------- = 1

(5-3/11)÷13+1/2

3+7/11=3 7/11

3 7/11×1/4=40/11×1/4=40/44=10/11

10/11-1/22=20-1/22=19/22

5-3/11=5/1-3/11=55-3/11=52/11=4 8/11

4 8/11÷13=52/11÷13/1=52/143=4/11

4/11+1/2=8+11/22=19/22