Add 7/36 and 21/63
7/36 + 21/63 is 19/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
7/36 = 7 × 7/36 × 7 = 49/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
21/63 = 21 × 4/63 × 4 = 84/252 - Add the two like fractions:
49/252 + 84/252 = 49 + 84/252 = 133/252 - 133/252 simplified gives 19/36
- So, 7/36 + 21/63 = 19/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/36+21/63 7/36+42/63 7/72+21/63 21/36+21/63 35/36+21/63 49/36+21/63