Дроби очень срочно срочно

Question

Дроби очень срочно срочно

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Answer 1

7/20 + 3/5 + 1/4 = 7/20 + 12/20 + 5/20 = 24/20 = 6/5 = 1 1/5
3/20 + 2/5 + 3/4 = 3/20 + 8/20 + 15/20 = 26/20 = 13/10 = 1 3/10 = 1,3