Add 2/21 and 80/24
1st number: 2/21, 2nd number: 3 8/24
2/21 + 80/24 is 24/7.
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,
2/21 = 2 × 8/21 × 8 = 16/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
80/24 = 80 × 7/24 × 7 = 560/168 - Add the two like fractions:
16/168 + 560/168 = 16 + 560/168 = 576/168 - 576/168 simplified gives 24/7
- So, 2/21 + 80/24 = 24/7
In mixed form: 33/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21+80/24 2/42+80/24 2/21+80/48 6/21+80/24 2/63+80/24 2/21+80/72 10/21+80/24 14/21+80/24