Add 24/21 and 8/18
1st number: 1 3/21, 2nd number: 8/18
24/21 + 8/18 is 100/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
24/21 = 24 × 6/21 × 6 = 144/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
8/18 = 8 × 7/18 × 7 = 56/126 - Add the two like fractions:
144/126 + 56/126 = 144 + 56/126 = 200/126 - 200/126 simplified gives 100/63
- So, 24/21 + 8/18 = 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+8/18 24/21+16/18 24/42+8/18 24/21+8/36 72/21+8/18 24/21+24/18 24/63+8/18 24/21+8/54 24/21+40/18 24/21+8/90 24/21+56/18