Add 80/45 and 27/84
1st number: 1 35/45, 2nd number: 27/84
80/45 + 27/84 is 529/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
80/45 = 80 × 28/45 × 28 = 2240/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
27/84 = 27 × 15/84 × 15 = 405/1260 - Add the two like fractions:
2240/1260 + 405/1260 = 2240 + 405/1260 = 2645/1260 - 2645/1260 simplified gives 529/252
- So, 80/45 + 27/84 = 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+54/84 80/90+27/84 80/45+81/84