Add 60/21 and 12/18
1st number: 2 18/21, 2nd number: 12/18
60/21 + 12/18 is 74/21.
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,
60/21 = 60 × 6/21 × 6 = 360/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
12/18 = 12 × 7/18 × 7 = 84/126 - Add the two like fractions:
360/126 + 84/126 = 360 + 84/126 = 444/126 - 444/126 simplified gives 74/21
- So, 60/21 + 12/18 = 74/21
In mixed form: 311/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/21+24/18 60/42+12/18 60/21+12/36 60/21+36/18 60/63+12/18 60/21+12/54 60/21+60/18 60/21+12/90 60/21+84/18