Add 21/36 and 35/63
21/36 + 35/63 is 41/36.
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,
21/36 = 21 × 7/36 × 7 = 147/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
35/63 = 35 × 4/63 × 4 = 140/252 - Add the two like fractions:
147/252 + 140/252 = 147 + 140/252 = 287/252 - 287/252 simplified gives 41/36
- So, 21/36 + 35/63 = 41/36
In mixed form: 15/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/36+35/63 21/36+70/63 21/72+35/63 63/36+35/63