Add 8/21 and 21/75
8/21 + 21/75 is 347/525.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 75 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
8/21 = 8 × 25/21 × 25 = 200/525 - Likewise, for the 2nd fraction, since 75 × 7 = 525,
21/75 = 21 × 7/75 × 7 = 147/525 - Add the two like fractions:
200/525 + 147/525 = 200 + 147/525 = 347/525 - So, 8/21 + 21/75 = 347/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/21+21/75 8/21+42/75 8/42+21/75 24/21+21/75 8/21+63/75 8/63+21/75 40/21+21/75 56/21+21/75