5 целых 7/20 + 20 целых 4/15 + 12 целых 11/60 = 5 целых 2/5 + 19 целых 9/10 + 4 целых 33/50=
31 целых 7/9 + 4 целых 11/27 + 35 целых 43/54 =
ПОЖАЛУЙСТА ПОМОГИТЕ С ДЗ
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