Answers

Add 70/12 and 49/42

1^st number: 5 10/12, 2^nd number: 1 7/42

70/12 + 49/42 is 7/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 42 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 12 × 7 = 84,
   70/12 = 70 × 7/12 × 7 = 490/84
3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
   49/42 = 49 × 2/42 × 2 = 98/84
4. Add the two like fractions:
   490/84 + 98/84 = 490 + 98/84 = 588/84
5. 588/84 simplified gives 7/1
6. So, 70/12 + 49/42 = 7/1

MathStep (Works offline)

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

Related: ⁷⁰/₁₂+⁹⁸/₄₂ ⁷⁰/₂₄+⁴⁹/₄₂ ⁷⁰/₁₂+⁴⁹/₈₄ ⁷⁰/₃₆+⁴⁹/₄₂ ⁷⁰/₆₀+⁴⁹/₄₂ ⁷⁰/₈₄+⁴⁹/₄₂

Add Fractions Calculator