Add 21/75 and 21/5
1st number: 21/75, 2nd number: 4 1/5
21/75 + 21/5 is 112/25.
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,
21/5 = 21 × 15/5 × 15 = 315/75 - Add the two like fractions:
21/75 + 315/75 = 21 + 315/75 = 336/75 - 336/75 simplified gives 112/25
- So, 21/75 + 21/5 = 112/25
In mixed form: 412/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/75+21/5 21/75+42/5 21/75+21/10 63/75+21/5 21/75+63/5 21/75+21/15 21/75+21/25 21/75+21/35