Add 50/21 and 60/18
1st number: 2 8/21, 2nd number: 3 6/18
50/21 + 60/18 is 40/7.
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,
50/21 = 50 × 6/21 × 6 = 300/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
60/18 = 60 × 7/18 × 7 = 420/126 - Add the two like fractions:
300/126 + 420/126 = 300 + 420/126 = 720/126 - 720/126 simplified gives 40/7
- So, 50/21 + 60/18 = 40/7
In mixed form: 55/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42+60/18 50/21+60/36 50/63+60/18 50/21+60/54 50/21+60/90