Add 24/21 and 36/12
1st number: 1 3/21, 2nd number: 3 0/12
24/21 + 36/12 is 29/7.
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,
24/21 = 24 × 4/21 × 4 = 96/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
36/12 = 36 × 7/12 × 7 = 252/84 - Add the two like fractions:
96/84 + 252/84 = 96 + 252/84 = 348/84 - 348/84 simplified gives 29/7
- So, 24/21 + 36/12 = 29/7
In mixed form: 41/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/21+36/12 24/21+72/12 24/42+36/12 24/21+36/24 72/21+36/12 24/63+36/12 24/21+36/60 24/21+36/84