Add 24/21 and 4/9
1st number: 1 3/21, 2nd number: 4/9
24/21 + 4/9 is 100/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
24/21 = 24 × 3/21 × 3 = 72/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
4/9 = 4 × 7/9 × 7 = 28/63 - Add the two like fractions:
72/63 + 28/63 = 72 + 28/63 = 100/63 - So, 24/21 + 4/9 = 100/63
In mixed form: 137/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/21+4/9 24/21+8/9 24/42+4/9 24/21+4/18 72/21+4/9 24/21+12/9 24/63+4/9 24/21+4/27 24/21+20/9 24/21+4/45 24/21+28/9 24/21+4/63