Add 10/21 and 60/12
1st number: 10/21, 2nd number: 5 0/12
10/21 + 60/12 is 115/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
10/21 = 10 × 4/21 × 4 = 40/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
60/12 = 60 × 7/12 × 7 = 420/84 - Add the two like fractions:
40/84 + 420/84 = 40 + 420/84 = 460/84 - 460/84 simplified gives 115/21
- So, 10/21 + 60/12 = 115/21
In mixed form: 510/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/21+60/12 10/42+60/12 10/21+60/24 30/21+60/12 10/63+60/12 10/21+60/36 50/21+60/12 70/21+60/12 10/21+60/84