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1/7+2/5

2 answers

The answer is 27/35
1 / 7 + 2 / 5 = ( 5 ∙ 1 ) / ( 5 ∙ 7 ) + ( 7 ∙ 2 ) / ( 7 ∙ 5 ) =

5 / 35 + 14 / 35 = 19 / 35