Add 49/28 and 80/90
1st number: 1 21/28, 2nd number: 80/90
49/28 + 80/90 is 95/36.
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,
49/28 = 49 × 45/28 × 45 = 2205/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
80/90 = 80 × 14/90 × 14 = 1120/1260 - Add the two like fractions:
2205/1260 + 1120/1260 = 2205 + 1120/1260 = 3325/1260 - 3325/1260 simplified gives 95/36
- So, 49/28 + 80/90 = 95/36
In mixed form: 223/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/28+80/90 49/56+80/90 49/84+80/90