Add 56/24 and 18/21
1st number: 2 8/24, 2nd number: 18/21
56/24 + 18/21 is 67/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
56/24 = 56 × 7/24 × 7 = 392/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
18/21 = 18 × 8/21 × 8 = 144/168 - Add the two like fractions:
392/168 + 144/168 = 392 + 144/168 = 536/168 - 536/168 simplified gives 67/21
- So, 56/24 + 18/21 = 67/21
In mixed form: 34/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/24+36/21 56/48+18/21 56/24+18/42 56/24+54/21 56/72+18/21 56/24+18/63 56/24+90/21