а) 1 целая 4/9+2 целых 5/15=
б)3 целых 5/24 - 1 целая 7/30=
в)2 целых 7/30+3 целых 9/20 - 4 целых 50/60=
г)3 целых 1/5 - 3 целых 1/5=
д)1 целая 4/11: 1 целая 2/13=
е)2 целых 3/4 : 1 целая 3/8 × 3=
ё)3 :3 целых 3/4+ 2 целых 2/5×2 целых 1/2 - 3 целых 5/6=
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