Add 18/21 and 80/24
1st number: 18/21, 2nd number: 3 8/24
18/21 + 80/24 is 88/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
18/21 = 18 × 8/21 × 8 = 144/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
80/24 = 80 × 7/24 × 7 = 560/168 - Add the two like fractions:
144/168 + 560/168 = 144 + 560/168 = 704/168 - 704/168 simplified gives 88/21
- So, 18/21 + 80/24 = 88/21
In mixed form: 44/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/21+80/24 18/42+80/24 18/21+80/48 54/21+80/24 18/63+80/24 18/21+80/72 90/21+80/24