Add 56/21 and 5/18
1st number: 2 14/21, 2nd number: 5/18
56/21 + 5/18 is 53/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
56/21 = 56 × 6/21 × 6 = 336/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
5/18 = 5 × 7/18 × 7 = 35/126 - Add the two like fractions:
336/126 + 35/126 = 336 + 35/126 = 371/126 - 371/126 simplified gives 53/18
- So, 56/21 + 5/18 = 53/18
In mixed form: 217/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/21+10/18 56/42+5/18 56/21+5/36 56/21+15/18 56/63+5/18 56/21+5/54 56/21+25/18 56/21+5/90 56/21+35/18