Question

Вычислите:1-13/55; 6-9/20; 10-5 12/35; 8-4 5/22

Answer 1

1-13/55=(55-13)/55=42/55; 
6-9/20=(120-9)/20=111/20=5 11/20=5,55;
10-5 12/35=10-187/35=(350-187)/35=163/35=4 23/35;
8-4 5/22 =8-93/22=(176-93)/22=83/22=3 17/22.