Add 21/14 and 25/12
1st number: 1 7/14, 2nd number: 2 1/12
21/14 + 25/12 is 43/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 14 × 6 = 84,
21/14 = 21 × 6/14 × 6 = 126/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
25/12 = 25 × 7/12 × 7 = 175/84 - Add the two like fractions:
126/84 + 175/84 = 126 + 175/84 = 301/84 - 301/84 simplified gives 43/12
- So, 21/14 + 25/12 = 43/12
In mixed form: 37/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14+25/12 21/14+50/12 21/28+25/12 21/14+25/24 63/14+25/12 21/14+75/12 21/42+25/12 21/14+25/36 21/70+25/12 21/14+25/60 21/98+25/12 21/14+25/84