Ответ:

Пошаговое объяснение:

1) 1/2 = 5/10, 2/5 = 4/10, 7/5 = 14/10 = 1 4/10, 4/5 = 8/10.

2) 1/4 = 25/100, 3/20 = 15/100, 8/25 = 32/100, 7/25 = 28/100, 1/50 = 2/100.

3) 6/125 = 48/1000, 3/250 = 12/1000, 7/200 = 35/1000, 9/500 = 18/1000

Ответ:

1)1/2×5=5/10

2/5×2=4/10

7/5×2=14/10=1 4/10

4/5×2=8/10

2)1/4×25=25/100

3/20×5=15/100

8/25×4=32/100

7/25×4=28/100

1/50×2=2/100

3)6/125×8=48/1000

3/250×4=12/1000

7/200×5=35/1000

9/500×2=18/1000