Выполните вычитание:
№1
а) 4/5 - 1/3
в) 4/5 - 3/4
№2
а) 9/14 - 2/7
в) 7/10 - 2/5
№3
а) 7/12 - 2/9
в) 7/10 - 4/15
№1
а) 4/5 - 1/3
в) 4/5 - 3/4
№2
а) 9/14 - 2/7
в) 7/10 - 2/5
№3
а) 7/12 - 2/9
в) 7/10 - 4/15
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Answers & Comments
4/5 - 3/4 = 16/20 - 15/20 = 1/20
9/14 - 2/7 = 9/14 - 4/14 = 5/14
7/10 - 2/5 = 7/10 - 4/10 = 3/10
7/12 - 2/9 = 21/36 - 8/36 = 13/36
7/10 - 4/15 = 21/30 - 8/30 = 13/30