Add 80/72 and 45/56
1st number: 1 8/72, 2nd number: 45/56
80/72 + 45/56 is 965/504.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
80/72 = 80 × 7/72 × 7 = 560/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
45/56 = 45 × 9/56 × 9 = 405/504 - Add the two like fractions:
560/504 + 405/504 = 560 + 405/504 = 965/504 - So, 80/72 + 45/56 = 965/504
In mixed form: 1461/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/72+90/56