Add 21/14 and 15/75
1st number: 1 7/14, 2nd number: 15/75
21/14 + 15/75 is 17/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 75 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 14 × 75 = 1050,
21/14 = 21 × 75/14 × 75 = 1575/1050 - Likewise, for the 2nd fraction, since 75 × 14 = 1050,
15/75 = 15 × 14/75 × 14 = 210/1050 - Add the two like fractions:
1575/1050 + 210/1050 = 1575 + 210/1050 = 1785/1050 - 1785/1050 simplified gives 17/10
- So, 21/14 + 15/75 = 17/10
In mixed form: 17/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14+15/75 21/14+30/75 21/28+15/75 63/14+15/75 21/14+45/75 21/42+15/75 21/70+15/75 21/98+15/75