Question

659 номер решите пожалйста

Answer 1

1/3=2/6=3/9=4/12=5/15=6/18
4/5=8/10=12/15=20/25=60/75=80/100
1/4=3/12=4/16=5/20=7/28=15/60
5/6=10/12=25/30=30/36=50/60=55/66