Add 96/28 and 80/90
1st number: 3 12/28, 2nd number: 80/90
96/28 + 80/90 is 272/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
96/28 = 96 × 45/28 × 45 = 4320/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
80/90 = 80 × 14/90 × 14 = 1120/1260 - Add the two like fractions:
4320/1260 + 1120/1260 = 4320 + 1120/1260 = 5440/1260 - 5440/1260 simplified gives 272/63
- So, 96/28 + 80/90 = 272/63
In mixed form: 420/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/56+80/90 96/84+80/90