Answers

Add 18/63 and 28/36

18/63 + 28/36 is 67/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 36 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 63 × 4 = 252,
   18/63 = 18 × 4/63 × 4 = 72/252
3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
   28/36 = 28 × 7/36 × 7 = 196/252
4. Add the two like fractions:
   72/252 + 196/252 = 72 + 196/252 = 268/252
5. 268/252 simplified gives 67/63
6. So, 18/63 + 28/36 = 67/63
   In mixed form: 14/63

MathStep (Works offline)

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

Related: ³⁶/₆₃+²⁸/₃₆ ¹⁸/₆₃+⁵⁶/₃₆ ¹⁸/₆₃+²⁸/₇₂ ⁵⁴/₆₃+²⁸/₃₆ ¹⁸/₆₃+⁸⁴/₃₆ ⁹⁰/₆₃+²⁸/₃₆

Add Fractions Calculator