Add 49/21 and 24/12
1st number: 2 7/21, 2nd number: 2 0/12
49/21 + 24/12 is 13/3.
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,
49/21 = 49 × 4/21 × 4 = 196/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
24/12 = 24 × 7/12 × 7 = 168/84 - Add the two like fractions:
196/84 + 168/84 = 196 + 168/84 = 364/84 - 364/84 simplified gives 13/3
- So, 49/21 + 24/12 = 13/3
In mixed form: 41/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21+24/12 49/21+48/12 49/42+24/12 49/21+72/12 49/63+24/12 49/21+24/36 49/21+24/60 49/21+24/84