Add 21/24 and 27/15
1st number: 21/24, 2nd number: 1 12/15
21/24 + 27/15 is 107/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
21/24 = 21 × 5/24 × 5 = 105/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
27/15 = 27 × 8/15 × 8 = 216/120 - Add the two like fractions:
105/120 + 216/120 = 105 + 216/120 = 321/120 - 321/120 simplified gives 107/40
- So, 21/24 + 27/15 = 107/40
In mixed form: 227/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/24+27/15 21/24+54/15 21/48+27/15 21/24+27/30 63/24+27/15 21/24+81/15 21/72+27/15 21/24+27/45 21/24+27/75