Add 5/28 and 15/12
1st number: 5/28, 2nd number: 1 3/12
5/28 + 15/12 is 10/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
5/28 = 5 × 3/28 × 3 = 15/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
15/12 = 15 × 7/12 × 7 = 105/84 - Add the two like fractions:
15/84 + 105/84 = 15 + 105/84 = 120/84 - 120/84 simplified gives 10/7
- So, 5/28 + 15/12 = 10/7
In mixed form: 13/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/28+15/12 5/28+30/12 5/56+15/12 5/28+15/24 15/28+15/12 5/28+45/12 5/84+15/12 5/28+15/36 25/28+15/12 5/28+75/12 5/28+15/60 35/28+15/12 5/28+15/84