J.R. S. answered 08/24/17
Tutor
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Ph.D. in Biochemistry--University Professor--Chemistry Tutor
Denominator the same, just add numerators. Thus, 3/7 + 6/7 = 9/7
9/7 = 1 2/7
David J.
asked 08/24/17J.R. S. answered 08/24/17
Ph.D. in Biochemistry--University Professor--Chemistry Tutor
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