Add 20/4 and 56/15
1st number: 5 0/4, 2nd number: 3 11/15
20/4 + 56/15 is 131/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
20/4 = 20 × 15/4 × 15 = 300/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
56/15 = 56 × 4/15 × 4 = 224/60 - Add the two like fractions:
300/60 + 224/60 = 300 + 224/60 = 524/60 - 524/60 simplified gives 131/15
- So, 20/4 + 56/15 = 131/15
In mixed form: 811/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/4+56/15 20/8+56/15 20/4+56/30 60/4+56/15 20/12+56/15 20/4+56/45 20/4+56/75 20/28+56/15