Add 24/80 and 21/9
1st number: 24/80, 2nd number: 2 3/9
24/80 + 21/9 is 79/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
24/80 = 24 × 9/80 × 9 = 216/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
21/9 = 21 × 80/9 × 80 = 1680/720 - Add the two like fractions:
216/720 + 1680/720 = 216 + 1680/720 = 1896/720 - 1896/720 simplified gives 79/30
- So, 24/80 + 21/9 = 79/30
In mixed form: 219/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/80+21/9 24/80+42/9 24/80+21/18 72/80+21/9 24/80+63/9 24/80+21/27 24/80+21/45 24/80+21/63