Add 80/45 and 18/56
1st number: 1 35/45, 2nd number: 18/56
80/45 + 18/56 is 529/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 45 × 56 = 2520,
80/45 = 80 × 56/45 × 56 = 4480/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
18/56 = 18 × 45/56 × 45 = 810/2520 - Add the two like fractions:
4480/2520 + 810/2520 = 4480 + 810/2520 = 5290/2520 - 5290/2520 simplified gives 529/252
- So, 80/45 + 18/56 = 529/252
In mixed form: 225/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/45+36/56 80/90+18/56 80/45+54/56 80/45+90/56