Answers

Add 60/21 and 90/10

1^st number: 2 18/21, 2^nd number: 9 0/10

60/21 + 90/10 is 83/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 10 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 21 × 10 = 210,
   60/21 = 60 × 10/21 × 10 = 600/210
3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
   90/10 = 90 × 21/10 × 21 = 1890/210
4. Add the two like fractions:
   600/210 + 1890/210 = 600 + 1890/210 = 2490/210
5. 2490/210 simplified gives 83/7
6. So, 60/21 + 90/10 = 83/7
   In mixed form: 116/7

MathStep (Works offline)

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

Related: ⁶⁰/₄₂+⁹⁰/₁₀ ⁶⁰/₂₁+⁹⁰/₂₀ ⁶⁰/₆₃+⁹⁰/₁₀ ⁶⁰/₂₁+⁹⁰/₃₀ ⁶⁰/₂₁+⁹⁰/₅₀ ⁶⁰/₂₁+⁹⁰/₇₀

Add Fractions Calculator