Add 98/28 and 18/90
1st number: 3 14/28, 2nd number: 18/90
98/28 + 18/90 is 37/10.
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,
98/28 = 98 × 45/28 × 45 = 4410/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
18/90 = 18 × 14/90 × 14 = 252/1260 - Add the two like fractions:
4410/1260 + 252/1260 = 4410 + 252/1260 = 4662/1260 - 4662/1260 simplified gives 37/10
- So, 98/28 + 18/90 = 37/10
In mixed form: 37/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/28+36/90 98/56+18/90 98/28+54/90 98/84+18/90