Add 63/15 and 21/27
1st number: 4 3/15, 2nd number: 21/27
63/15 + 21/27 is 224/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 15 × 9 = 135,
63/15 = 63 × 9/15 × 9 = 567/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
21/27 = 21 × 5/27 × 5 = 105/135 - Add the two like fractions:
567/135 + 105/135 = 567 + 105/135 = 672/135 - 672/135 simplified gives 224/45
- So, 63/15 + 21/27 = 224/45
In mixed form: 444/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/15+42/27 63/30+21/27 63/15+21/54 63/15+63/27 63/45+21/27 63/15+21/81 63/75+21/27