Answers

Add 70/42 and 16/20

1^st number: 1 28/42, 2^nd number: 16/20

70/42 + 16/20 is 37/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 20 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 42 × 10 = 420,
   70/42 = 70 × 10/42 × 10 = 700/420
3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
   16/20 = 16 × 21/20 × 21 = 336/420
4. Add the two like fractions:
   700/420 + 336/420 = 700 + 336/420 = 1036/420
5. 1036/420 simplified gives 37/15
6. So, 70/42 + 16/20 = 37/15
   In mixed form: 27/15

MathStep (Works offline)

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

Related: ⁷⁰/₄₂+³²/₂₀ ⁷⁰/₈₄+¹⁶/₂₀ ⁷⁰/₄₂+¹⁶/₄₀ ⁷⁰/₄₂+⁴⁸/₂₀ ⁷⁰/₄₂+¹⁶/₆₀ ⁷⁰/₄₂+⁸⁰/₂₀

Add Fractions Calculator