Add 1/18 and 50/21
1st number: 1/18, 2nd number: 2 8/21
1/18 + 50/21 is 307/126.
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,
1/18 = 1 × 7/18 × 7 = 7/126 - Likewise, for the 2nd fraction, since 21 × 6 = 126,
50/21 = 50 × 6/21 × 6 = 300/126 - Add the two like fractions:
7/126 + 300/126 = 7 + 300/126 = 307/126 - So, 1/18 + 50/21 = 307/126
In mixed form: 255/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/18+50/21 1/36+50/21 1/18+50/42 3/18+50/21 1/54+50/21 1/18+50/63 5/18+50/21 1/90+50/21 7/18+50/21