Add 16/21 and 9/25
16/21 + 9/25 is 589/525.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 25 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
16/21 = 16 × 25/21 × 25 = 400/525 - Likewise, for the 2nd fraction, since 25 × 21 = 525,
9/25 = 9 × 21/25 × 21 = 189/525 - Add the two like fractions:
400/525 + 189/525 = 400 + 189/525 = 589/525 - So, 16/21 + 9/25 = 589/525
In mixed form: 164/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/21+9/25 16/21+18/25 16/42+9/25 16/21+9/50 48/21+9/25 16/21+27/25 16/63+9/25 16/21+9/75 80/21+9/25 16/21+45/25 16/21+63/25