Add 7/90 and 27/12
1st number: 7/90, 2nd number: 2 3/12
7/90 + 27/12 is 419/180.
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,
7/90 = 7 × 2/90 × 2 = 14/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
27/12 = 27 × 15/12 × 15 = 405/180 - Add the two like fractions:
14/180 + 405/180 = 14 + 405/180 = 419/180 - So, 7/90 + 27/12 = 419/180
In mixed form: 259/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/90+27/12 7/90+54/12 7/90+27/24 21/90+27/12 7/90+81/12 7/90+27/36 35/90+27/12 7/90+27/60 49/90+27/12 7/90+27/84