Add 6/15 and 21/75
6/15 + 21/75 is 17/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 75 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 15 × 5 = 75,
6/15 = 6 × 5/15 × 5 = 30/75 - Likewise, for the 2nd fraction, since 75 × 1 = 75,
21/75 = 21 × 1/75 × 1 = 21/75 - Add the two like fractions:
30/75 + 21/75 = 30 + 21/75 = 51/75 - 51/75 simplified gives 17/25
- So, 6/15 + 21/75 = 17/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/15+21/75 6/15+42/75 6/30+21/75 18/15+21/75 6/15+63/75 6/45+21/75 30/15+21/75 6/75+21/75 42/15+21/75