ПОМОГИТЕ РЕШИТЬ 4 9/14 + 3 4/21 8 8/15 - 4 9/20 7 1/10-3 1/6

Question

ПОМОГИТЕ РЕШИТЬ 4 9/14 + 3 4/21
8 8/15 - 4 9/20
7 1/10-3 1/6

Comments

НУ

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ПЖ

Answer 1

1 - 4/9=9/9 - 4/9=5/9
8 8/15 - 4 9/20=8 32/60 - 4 27/60=4 5/60=4 1/12
4 - 3 3/4=3 4/4 - 3 3/4=1/4
9 4/21 - 4 11/14=9 8/42 - 4 33/42=8 50/42 - 4 33/42=4 17/42
7 1/10 - 3 1/6=7 3/30 - 3 5/30=6 33/30 - 3 5/30=3 28/30=3 14/15
5 5/33 - 4 7/22=5 10/66 - 4 21/66=4 76/66 - 4 21/66=55/66=5/6