Add 5/18 and 24/21
1st number: 5/18, 2nd number: 1 3/21
5/18 + 24/21 is 179/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
5/18 = 5 × 7/18 × 7 = 35/126 - Likewise, for the 2nd fraction, since 21 × 6 = 126,
24/21 = 24 × 6/21 × 6 = 144/126 - Add the two like fractions:
35/126 + 144/126 = 35 + 144/126 = 179/126 - So, 5/18 + 24/21 = 179/126
In mixed form: 153/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18+24/21 5/18+48/21 5/36+24/21 5/18+24/42 15/18+24/21 5/18+72/21 5/54+24/21 5/18+24/63 25/18+24/21 5/90+24/21 35/18+24/21