Add 15/27 and 42/24
1st number: 15/27, 2nd number: 1 18/24
15/27 + 42/24 is 83/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 24 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 27 × 8 = 216,
15/27 = 15 × 8/27 × 8 = 120/216 - Likewise, for the 2nd fraction, since 24 × 9 = 216,
42/24 = 42 × 9/24 × 9 = 378/216 - Add the two like fractions:
120/216 + 378/216 = 120 + 378/216 = 498/216 - 498/216 simplified gives 83/36
- So, 15/27 + 42/24 = 83/36
In mixed form: 211/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/27+42/24 15/27+84/24 15/54+42/24 15/27+42/48 45/27+42/24 15/81+42/24 15/27+42/72 75/27+42/24