Add 63/75 and 21/27
63/75 + 21/27 is 364/225.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 27 is 675
Next, find the equivalent fraction of both fractional numbers with denominator 675 - For the 1st fraction, since 75 × 9 = 675,
63/75 = 63 × 9/75 × 9 = 567/675 - Likewise, for the 2nd fraction, since 27 × 25 = 675,
21/27 = 21 × 25/27 × 25 = 525/675 - Add the two like fractions:
567/675 + 525/675 = 567 + 525/675 = 1092/675 - 1092/675 simplified gives 364/225
- So, 63/75 + 21/27 = 364/225
In mixed form: 1139/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/75+42/27 63/75+21/54 63/75+63/27 63/75+21/81