Add 25/21 and 2/12
1st number: 1 4/21, 2nd number: 2/12
25/21 + 2/12 is 19/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
25/21 = 25 × 4/21 × 4 = 100/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
2/12 = 2 × 7/12 × 7 = 14/84 - Add the two like fractions:
100/84 + 14/84 = 100 + 14/84 = 114/84 - 114/84 simplified gives 19/14
- So, 25/21 + 2/12 = 19/14
In mixed form: 15/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21+2/12 25/21+4/12 25/42+2/12 25/21+2/24 75/21+2/12 25/21+6/12 25/63+2/12 25/21+2/36 25/21+10/12 25/21+2/60 25/21+14/12 25/21+2/84