3/8:2/5 4/25:8/15 2/5:4/5 8/45 :4/15

Question

3/8:2/5
4/25:8/15
2/5:4/5
8/45 :4/15

Answer 1

3/8:2/5=3/8*5/2=15/16
4/25:8/15=4/25*15/8=60/200=3/10
2/5:4/5=2/5*5/4=10/20=1/2
8/45:4/15=8/45*15/4=120/180=2/3

Comments

спасибо

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а тут сокращено?