Add 56/75 and 20/21
56/75 + 20/21 is 892/525.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
56/75 = 56 × 7/75 × 7 = 392/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
20/21 = 20 × 25/21 × 25 = 500/525 - Add the two like fractions:
392/525 + 500/525 = 392 + 500/525 = 892/525 - So, 56/75 + 20/21 = 892/525
In mixed form: 1367/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/75+40/21 56/75+20/42 56/75+60/21 56/75+20/63