Explicación paso a paso:
5/6 +1/3 = 5(3) + 1(6) / 6(3) = 21 /18 = 7/6
5/2 + 3/4 = 20 + 6 / 8 = 26 / 8 = 13/4
7/4 - 1/2 = 7(2) - 4(1) / 4(2) = 10 / 8 = 5/4
2/3 - 7/15 = 30 - 21 / 45 = 9 / 45 = 1/5
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Explicación paso a paso:
5/6 +1/3 = 5(3) + 1(6) / 6(3) = 21 /18 = 7/6
5/2 + 3/4 = 20 + 6 / 8 = 26 / 8 = 13/4
7/4 - 1/2 = 7(2) - 4(1) / 4(2) = 10 / 8 = 5/4
2/3 - 7/15 = 30 - 21 / 45 = 9 / 45 = 1/5