Answers

Add 27/30 and 50/21

1^st number: 27/30, 2^nd number: 2 8/21

27/30 + 50/21 is 689/210.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 21 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 30 × 7 = 210,
   27/30 = 27 × 7/30 × 7 = 189/210
3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
   50/21 = 50 × 10/21 × 10 = 500/210
4. Add the two like fractions:
   189/210 + 500/210 = 189 + 500/210 = 689/210
5. So, 27/30 + 50/21 = 689/210
   In mixed form: 359/210

MathStep (Works offline)

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

Related: ⁵⁴/₃₀+⁵⁰/₂₁ ²⁷/₆₀+⁵⁰/₂₁ ²⁷/₃₀+⁵⁰/₄₂ ⁸¹/₃₀+⁵⁰/₂₁ ²⁷/₉₀+⁵⁰/₂₁ ²⁷/₃₀+⁵⁰/₆₃

Add Fractions Calculator