А)3 3/4+1/5= б)7 9/20+7/30

Question

А)3 3/4+1/5=
б)7 9/20+7/30

Answer 1

3  3/4 + 1 /5 = 3  15/20 + 4/20 = 3 19/20
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7  9/20 + 7/30 = 7 27/60 + 14/60 = 7 41/60