Add 10/12 and 32/21
1st number: 10/12, 2nd number: 1 11/21
10/12 + 32/21 is 33/14.
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,
10/12 = 10 × 7/12 × 7 = 70/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
32/21 = 32 × 4/21 × 4 = 128/84 - Add the two like fractions:
70/84 + 128/84 = 70 + 128/84 = 198/84 - 198/84 simplified gives 33/14
- So, 10/12 + 32/21 = 33/14
In mixed form: 25/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/12+32/21 10/12+64/21 10/24+32/21 10/12+32/42 30/12+32/21 10/12+96/21 10/36+32/21 10/12+32/63 50/12+32/21 10/60+32/21 70/12+32/21 10/84+32/21