Add 18/15 and 63/24
1st number: 1 3/15, 2nd number: 2 15/24
18/15 + 63/24 is 153/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
18/15 = 18 × 8/15 × 8 = 144/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
63/24 = 63 × 5/24 × 5 = 315/120 - Add the two like fractions:
144/120 + 315/120 = 144 + 315/120 = 459/120 - 459/120 simplified gives 153/40
- So, 18/15 + 63/24 = 153/40
In mixed form: 333/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15+63/24 18/30+63/24 18/15+63/48 54/15+63/24 18/45+63/24 18/15+63/72 90/15+63/24 18/75+63/24