Add 15/4 and 56/7
1st number: 3 3/4, 2nd number: 8 0/7
15/4 + 56/7 is 47/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 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 7 × 4 = 28,
56/7 = 56 × 4/7 × 4 = 224/28 - Add the two like fractions:
105/28 + 224/28 = 105 + 224/28 = 329/28 - 329/28 simplified gives 47/4
- So, 15/4 + 56/7 = 47/4
In mixed form: 113/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4+56/7 15/8+56/7 15/4+56/14 45/4+56/7 15/12+56/7 15/4+56/21 75/4+56/7 15/20+56/7 15/4+56/35 15/28+56/7 15/4+56/49