Answers

Add 10/63 and 72/80

10/63 + 72/80 is 667/630.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 80 is 5040
   
   Next, find the equivalent fraction of both fractional numbers with denominator 5040
2. For the 1st fraction, since 63 × 80 = 5040,
   10/63 = 10 × 80/63 × 80 = 800/5040
3. Likewise, for the 2nd fraction, since 80 × 63 = 5040,
   72/80 = 72 × 63/80 × 63 = 4536/5040
4. Add the two like fractions:
   800/5040 + 4536/5040 = 800 + 4536/5040 = 5336/5040
5. 5336/5040 simplified gives 667/630
6. So, 10/63 + 72/80 = 667/630
   In mixed form: 137/630

MathStep (Works offline)

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

Related: ²⁰/₆₃+⁷²/₈₀ ³⁰/₆₃+⁷²/₈₀ ⁵⁰/₆₃+⁷²/₈₀ ⁷⁰/₆₃+⁷²/₈₀

Add Fractions Calculator