Вычислите 1 - 2/3 1 - 2/5 1 - 10/11 1 - 13/18

Question

Вычислите 1 - 2/3 1 - 2/5 1 - 10/11 1 - 13/18

Answer 1

1-2/3=3/3-2/3=1/3
1-2/5=5/5-2/5=3/5
1-10/11=11/11-10/11=1/11
1-13/18=18/18-13/18=5/18