Add 25/15 and 7/28
1st number: 1 10/15, 2nd number: 7/28
25/15 + 7/28 is 23/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
25/15 = 25 × 28/15 × 28 = 700/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
7/28 = 7 × 15/28 × 15 = 105/420 - Add the two like fractions:
700/420 + 105/420 = 700 + 105/420 = 805/420 - 805/420 simplified gives 23/12
- So, 25/15 + 7/28 = 23/12
In mixed form: 111/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/15+7/28 25/15+14/28 25/30+7/28 25/15+7/56 75/15+7/28 25/15+21/28 25/45+7/28 25/15+7/84 25/15+35/28 25/75+7/28 25/15+49/28