Add 56/28 and 1/21
1st number: 2 0/28, 2nd number: 1/21
56/28 + 1/21 is 43/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
56/28 = 56 × 3/28 × 3 = 168/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
1/21 = 1 × 4/21 × 4 = 4/84 - Add the two like fractions:
168/84 + 4/84 = 168 + 4/84 = 172/84 - 172/84 simplified gives 43/21
- So, 56/28 + 1/21 = 43/21
In mixed form: 21/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/28+2/21 56/28+1/42 56/28+3/21 56/84+1/21 56/28+1/63 56/28+5/21 56/28+7/21