Ответ:
Пошаговое объяснение:
1/3 - 1/6 = 1*2 / 3*2 - 1/6 = 2/6 - 1/6 = 1/6
3/20 + 3/4 = 3/20 + 3*5 / 4*5 = 3/20 + 15/20 = 18/20 = 9/10
7/9 - 2/3 = 7/9 - 2*3 / 3*3 = 7/9 - 6/9 = 1/9
1/4 + 1/5 = 1*5 / 4*5 + 1*4 / 5*4 = 5/20 + 4/20 = 9/20
2/5 + 4/15 = 2*3 / 5*3 + 4/15 = 6/15 + 4/15 = 10/15 = 2/3
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Ответ:
Пошаговое объяснение:
1/3 - 1/6 = 1*2 / 3*2 - 1/6 = 2/6 - 1/6 = 1/6
3/20 + 3/4 = 3/20 + 3*5 / 4*5 = 3/20 + 15/20 = 18/20 = 9/10
7/9 - 2/3 = 7/9 - 2*3 / 3*3 = 7/9 - 6/9 = 1/9
1/4 + 1/5 = 1*5 / 4*5 + 1*4 / 5*4 = 5/20 + 4/20 = 9/20
2/5 + 4/15 = 2*3 / 5*3 + 4/15 = 6/15 + 4/15 = 10/15 = 2/3