Answers

Add 90/70 and 10/28

1^st number: 1 20/70, 2^nd number: 10/28

90/70 + 10/28 is 23/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 28 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 70 × 2 = 140,
   90/70 = 90 × 2/70 × 2 = 180/140
3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
   10/28 = 10 × 5/28 × 5 = 50/140
4. Add the two like fractions:
   180/140 + 50/140 = 180 + 50/140 = 230/140
5. 230/140 simplified gives 23/14
6. So, 90/70 + 10/28 = 23/14
   In mixed form: 19/14

MathStep (Works offline)

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

Related: ⁹⁰/₇₀+²⁰/₂₈ ⁹⁰/₇₀+¹⁰/₅₆ ⁹⁰/₇₀+³⁰/₂₈ ⁹⁰/₇₀+¹⁰/₈₄ ⁹⁰/₇₀+⁵⁰/₂₈ ⁹⁰/₇₀+⁷⁰/₂₈

Add Fractions Calculator