Add 3/4 and 15/28
3/4 + 15/28 is 9/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
3/4 = 3 × 7/4 × 7 = 21/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
15/28 = 15 × 1/28 × 1 = 15/28 - Add the two like fractions:
21/28 + 15/28 = 21 + 15/28 = 36/28 - 36/28 simplified gives 9/7
- So, 3/4 + 15/28 = 9/7
In mixed form: 12/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/4+15/28 3/4+30/28 3/8+15/28 3/4+15/56 9/4+15/28 3/4+45/28 3/12+15/28 3/4+15/84 15/4+15/28 3/4+75/28 3/20+15/28 21/4+15/28 3/28+15/28