Answers

Add 30/21 and 60/30

1^st number: 1 9/21, 2^nd number: 2 0/30

30/21 + 60/30 is 24/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 30 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 21 × 10 = 210,
   30/21 = 30 × 10/21 × 10 = 300/210
3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
   60/30 = 60 × 7/30 × 7 = 420/210
4. Add the two like fractions:
   300/210 + 420/210 = 300 + 420/210 = 720/210
5. 720/210 simplified gives 24/7
6. So, 30/21 + 60/30 = 24/7
   In mixed form: 33/7

MathStep (Works offline)

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

Related: ⁶⁰/₂₁+⁶⁰/₃₀ ³⁰/₄₂+⁶⁰/₃₀ ⁹⁰/₂₁+⁶⁰/₃₀ ³⁰/₆₃+⁶⁰/₃₀ ³⁰/₂₁+⁶⁰/₉₀

Add Fractions Calculator