Answers

Add 20/63 and 7/72

20/63 + 7/72 is 209/504.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 63 × 8 = 504,
   20/63 = 20 × 8/63 × 8 = 160/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   7/72 = 7 × 7/72 × 7 = 49/504
4. Add the two like fractions:
   160/504 + 49/504 = 160 + 49/504 = 209/504
5. So, 20/63 + 7/72 = 209/504

MathStep (Works offline)

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

Related: ⁴⁰/₆₃+⁷/₇₂ ²⁰/₆₃+¹⁴/₇₂ ⁶⁰/₆₃+⁷/₇₂ ²⁰/₆₃+²¹/₇₂ ²⁰/₆₃+³⁵/₇₂ ²⁰/₆₃+⁴⁹/₇₂

Add Fractions Calculator