Add 56/15 and 35/18
1st number: 3 11/15, 2nd number: 1 17/18
56/15 + 35/18 is 511/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
56/15 = 56 × 6/15 × 6 = 336/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
35/18 = 35 × 5/18 × 5 = 175/90 - Add the two like fractions:
336/90 + 175/90 = 336 + 175/90 = 511/90 - So, 56/15 + 35/18 = 511/90
In mixed form: 561/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15+70/18 56/30+35/18 56/15+35/36 56/45+35/18 56/15+35/54 56/75+35/18 56/15+35/90