Add 98/90 and 18/12
1st number: 1 8/90, 2nd number: 1 6/12
98/90 + 18/12 is 233/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
98/90 = 98 × 2/90 × 2 = 196/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
18/12 = 18 × 15/12 × 15 = 270/180 - Add the two like fractions:
196/180 + 270/180 = 196 + 270/180 = 466/180 - 466/180 simplified gives 233/90
- So, 98/90 + 18/12 = 233/90
In mixed form: 253/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/90+36/12 98/90+18/24 98/90+54/12 98/90+18/36 98/90+90/12 98/90+18/60 98/90+18/84