Răspuns:
Explicație pas cu pas:
23/6 + 5/6 + 35/30 = 23/6 + 5/6 + 7/6 = 35/6
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25/12 + 7/12 + 15/36 = 25/12 + 7/12 + 5/12 = 37/12
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8/13 + 20/52 + 11/13 = 8/13 + 5/13 + 11/13 = 24/13
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4/15 + 35/75 + 13/15 = 4/15 + 7/15 + 13/15 = 24/15