Answers

Add 28/63 and 10/30

28/63 + 10/30 is 7/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 30 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   28/63 = 28 × 10/63 × 10 = 280/630
3. Likewise, for the 2nd fraction, since 30 × 21 = 630,
   10/30 = 10 × 21/30 × 21 = 210/630
4. Add the two like fractions:
   280/630 + 210/630 = 280 + 210/630 = 490/630
5. 490/630 simplified gives 7/9
6. So, 28/63 + 10/30 = 7/9

MathStep (Works offline)

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

Related: ⁵⁶/₆₃+¹⁰/₃₀ ²⁸/₆₃+²⁰/₃₀ ²⁸/₆₃+¹⁰/₆₀ ⁸⁴/₆₃+¹⁰/₃₀ ²⁸/₆₃+¹⁰/₉₀ ²⁸/₆₃+⁵⁰/₃₀ ²⁸/₆₃+⁷⁰/₃₀

Add Fractions Calculator