Add 16/21 and 25/12
1st number: 16/21, 2nd number: 2 1/12
16/21 + 25/12 is 239/84.
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,
16/21 = 16 × 4/21 × 4 = 64/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
25/12 = 25 × 7/12 × 7 = 175/84 - Add the two like fractions:
64/84 + 175/84 = 64 + 175/84 = 239/84 - So, 16/21 + 25/12 = 239/84
In mixed form: 271/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/21+25/12 16/21+50/12 16/42+25/12 16/21+25/24 48/21+25/12 16/21+75/12 16/63+25/12 16/21+25/36 80/21+25/12 16/21+25/60 16/21+25/84