Add 90/9 and 80/56
1st number: 10 0/9, 2nd number: 1 24/56
90/9 + 80/56 is 80/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 9 × 56 = 504,
90/9 = 90 × 56/9 × 56 = 5040/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
80/56 = 80 × 9/56 × 9 = 720/504 - Add the two like fractions:
5040/504 + 720/504 = 5040 + 720/504 = 5760/504 - 5760/504 simplified gives 80/7
- So, 90/9 + 80/56 = 80/7
In mixed form: 113/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18+80/56 90/27+80/56 90/45+80/56 90/63+80/56