Question

сократите дробь 12:15, 21:35, 12:30,45:50, 18:90, 56:80, 9:12, 21:60.

Answer 1

12/15=4/5
21/35=3/5
12/30=2/5
45/50=9/10
18/90=1/5
56/80=14/20=7/10
9/12=3/4
21/60=7/20