Question

найдите значения выражения:
3/5 - 1/7
5/12 + 1/60
9/17 - 19/68
9/10 + 4/15
4/15 - 11/60

Answer 1

значение выражение на фото

Answer 2

3/5-1/7=21/35-5/35=16/35
5/12+1/60=25/60+1/60=26/60
9/17-19/68=36/68-19/68=17/68=1/4
9/10+4/15=135/150+40/150=175/150=1 25/150= =1 1/6
4/15-11/60=16/60-11/60=5/60=1/12

Answer 3

Решение:

3/5 - 1/7 = 21/35 - 5/35 = 16/35

5/12 + 1/60 = 25/60 + 1/60 = 26/60 = 13/30

9/17 - 19/68 = 36/68 - 19/68 = 17/68 = 1/4

9/10 + 4/15 = 27/30 + 8/30 = 35/30 = 7/6 = 1целая 1/6

4/15 - 11/60 = 16/60 - 11/60 = 5/60 = 1/12