Ответ:
Пошаговое объяснение:
1 . д) 8/10 - 6/15 = 4/5 - 2/5 = 2/5
e) 5/12 - 4/15 = 25/60 - 16/60 = 9/60 = 3/20
ж) 3/4 - 5/18 = 27/36 - 10/36 = 17/36
з) 2/26 - 1/39 = 1/13 - 1/39 = 3/39 - 1/39 = 2/39
и) 7/34 - 5/51 = 21/102 - 10/102 = 11/102
к) 8/210 - 1/140 = 16/420 - 3/420 = 13/420
л) 70/450 - 8/180 = 7/45 - 2/45 = 5/45 = 1/9 .
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Ответ:
Пошаговое объяснение:
1 . д) 8/10 - 6/15 = 4/5 - 2/5 = 2/5
e) 5/12 - 4/15 = 25/60 - 16/60 = 9/60 = 3/20
ж) 3/4 - 5/18 = 27/36 - 10/36 = 17/36
з) 2/26 - 1/39 = 1/13 - 1/39 = 3/39 - 1/39 = 2/39
и) 7/34 - 5/51 = 21/102 - 10/102 = 11/102
к) 8/210 - 1/140 = 16/420 - 3/420 = 13/420
л) 70/450 - 8/180 = 7/45 - 2/45 = 5/45 = 1/9 .
Ответ:
Пошаговое объяснение: