Add 3/27 and 21/24
3/27 + 21/24 is 71/72.
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,
3/27 = 3 × 8/27 × 8 = 24/216 - Likewise, for the 2nd fraction, since 24 × 9 = 216,
21/24 = 21 × 9/24 × 9 = 189/216 - Add the two like fractions:
24/216 + 189/216 = 24 + 189/216 = 213/216 - 213/216 simplified gives 71/72
- So, 3/27 + 21/24 = 71/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/27+21/24 3/27+42/24 3/54+21/24 3/27+21/48 9/27+21/24 3/27+63/24 3/81+21/24 3/27+21/72 15/27+21/24 21/27+21/24