Add 56/21 and 3/5
1st number: 2 14/21, 2nd number: 3/5
56/21 + 3/5 is 49/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
56/21 = 56 × 5/21 × 5 = 280/105 - Likewise, for the 2nd fraction, since 5 × 21 = 105,
3/5 = 3 × 21/5 × 21 = 63/105 - Add the two like fractions:
280/105 + 63/105 = 280 + 63/105 = 343/105 - 343/105 simplified gives 49/15
- So, 56/21 + 3/5 = 49/15
In mixed form: 34/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/21+6/5 56/42+3/5 56/21+3/10 56/21+9/5 56/63+3/5 56/21+3/15 56/21+15/5 56/21+3/25 56/21+21/5 56/21+3/35