Add 49/12 and 60/21
1st number: 4 1/12, 2nd number: 2 18/21
49/12 + 60/21 is 583/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
49/12 = 49 × 7/12 × 7 = 343/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
60/21 = 60 × 4/21 × 4 = 240/84 - Add the two like fractions:
343/84 + 240/84 = 343 + 240/84 = 583/84 - So, 49/12 + 60/21 = 583/84
In mixed form: 679/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/12+60/21 49/24+60/21 49/12+60/42 49/36+60/21 49/12+60/63 49/60+60/21 49/84+60/21