Answers

Add 28/63 and 63/72

28/63 + 63/72 is 95/72.

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,
   28/63 = 28 × 8/63 × 8 = 224/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   63/72 = 63 × 7/72 × 7 = 441/504
4. Add the two like fractions:
   224/504 + 441/504 = 224 + 441/504 = 665/504
5. 665/504 simplified gives 95/72
6. So, 28/63 + 63/72 = 95/72
   In mixed form: 123/72

MathStep (Works offline)

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

Related: ⁵⁶/₆₃+⁶³/₇₂ ⁸⁴/₆₃+⁶³/₇₂

Add Fractions Calculator