Add 56/45 and 24/80
1st number: 1 11/45, 2nd number: 24/80
56/45 + 24/80 is 139/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
56/45 = 56 × 16/45 × 16 = 896/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
24/80 = 24 × 9/80 × 9 = 216/720 - Add the two like fractions:
896/720 + 216/720 = 896 + 216/720 = 1112/720 - 1112/720 simplified gives 139/90
- So, 56/45 + 24/80 = 139/90
In mixed form: 149/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45+48/80 56/90+24/80 56/45+72/80