Add 6/21 and 15/24
6/21 + 15/24 is 51/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
6/21 = 6 × 8/21 × 8 = 48/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
15/24 = 15 × 7/24 × 7 = 105/168 - Add the two like fractions:
48/168 + 105/168 = 48 + 105/168 = 153/168 - 153/168 simplified gives 51/56
- So, 6/21 + 15/24 = 51/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21+15/24 6/21+30/24 6/42+15/24 6/21+15/48 18/21+15/24 6/21+45/24 6/63+15/24 6/21+15/72 30/21+15/24 6/21+75/24 42/21+15/24