Add 2/21 and 9/24
2/21 + 9/24 is 79/168.
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,
2/21 = 2 × 8/21 × 8 = 16/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
9/24 = 9 × 7/24 × 7 = 63/168 - Add the two like fractions:
16/168 + 63/168 = 16 + 63/168 = 79/168 - So, 2/21 + 9/24 = 79/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21+9/24 2/21+18/24 2/42+9/24 2/21+9/48 6/21+9/24 2/21+27/24 2/63+9/24 2/21+9/72 10/21+9/24 2/21+45/24 14/21+9/24 2/21+63/24