Answers

Add 84/42 and 70/7

1^st number: 2 0/42, 2^nd number: 10 0/7

84/42 + 70/7 is 12/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 7 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 42 × 1 = 42,
   84/42 = 84 × 1/42 × 1 = 84/42
3. Likewise, for the 2nd fraction, since 7 × 6 = 42,
   70/7 = 70 × 6/7 × 6 = 420/42
4. Add the two like fractions:
   84/42 + 420/42 = 84 + 420/42 = 504/42
5. 504/42 simplified gives 12/1
6. So, 84/42 + 70/7 = 12/1

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁸⁴/₄₂+⁷⁰/₁₄ ⁸⁴/₄₂+⁷⁰/₂₁ ⁸⁴/₄₂+⁷⁰/₃₅ ⁸⁴/₄₂+⁷⁰/₄₉

Add Fractions Calculator