Add 21/75 and 10/5
1st number: 21/75, 2nd number: 2 0/5
21/75 + 10/5 is 57/25.
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,
10/5 = 10 × 15/5 × 15 = 150/75 - Add the two like fractions:
21/75 + 150/75 = 21 + 150/75 = 171/75 - 171/75 simplified gives 57/25
- So, 21/75 + 10/5 = 57/25
In mixed form: 27/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/75+10/5 21/75+20/5 63/75+10/5 21/75+30/5 21/75+10/15 21/75+50/5 21/75+10/25 21/75+70/5 21/75+10/35