Add 15/4 and 15/28
1st number: 3 3/4, 2nd number: 15/28
15/4 + 15/28 is 30/7.
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,
15/4 = 15 × 7/4 × 7 = 105/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
15/28 = 15 × 1/28 × 1 = 15/28 - Add the two like fractions:
105/28 + 15/28 = 105 + 15/28 = 120/28 - 120/28 simplified gives 30/7
- So, 15/4 + 15/28 = 30/7
In mixed form: 42/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4+15/28 15/4+30/28 15/8+15/28 15/4+15/56 45/4+15/28 15/4+45/28 15/12+15/28 15/4+15/84 75/4+15/28 15/4+75/28 15/20+15/28 15/28+15/28