Add 1/15 and 63/18
1st number: 1/15, 2nd number: 3 9/18
1/15 + 63/18 is 107/30.
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,
1/15 = 1 × 6/15 × 6 = 6/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
63/18 = 63 × 5/18 × 5 = 315/90 - Add the two like fractions:
6/90 + 315/90 = 6 + 315/90 = 321/90 - 321/90 simplified gives 107/30
- So, 1/15 + 63/18 = 107/30
In mixed form: 317/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/15+63/18 1/30+63/18 1/15+63/36 3/15+63/18 1/45+63/18 1/15+63/54 5/15+63/18 1/75+63/18 1/15+63/90 7/15+63/18