Answers

Add 36/72 and 21/56

36/72 + 21/56 is 7/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 56 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   36/72 = 36 × 7/72 × 7 = 252/504
3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
   21/56 = 21 × 9/56 × 9 = 189/504
4. Add the two like fractions:
   252/504 + 189/504 = 252 + 189/504 = 441/504
5. 441/504 simplified gives 7/8
6. So, 36/72 + 21/56 = 7/8

MathStep (Works offline)

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

Related: ³⁶/₇₂+⁴²/₅₆ ³⁶/₇₂+⁶³/₅₆

Add Fractions Calculator