Add 21/75 and 3/5
21/75 + 3/5 is 22/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 5 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 75 × 1 = 75,
21/75 = 21 × 1/75 × 1 = 21/75 - Likewise, for the 2nd fraction, since 5 × 15 = 75,
3/5 = 3 × 15/5 × 15 = 45/75 - Add the two like fractions:
21/75 + 45/75 = 21 + 45/75 = 66/75 - 66/75 simplified gives 22/25
- So, 21/75 + 3/5 = 22/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/75+3/5 21/75+6/5 21/75+3/10 63/75+3/5 21/75+9/5 21/75+3/15 21/75+15/5 21/75+3/25 21/75+21/5 21/75+3/35