Add 8/90 and 27/12
1st number: 8/90, 2nd number: 2 3/12
8/90 + 27/12 is 421/180.
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,
8/90 = 8 × 2/90 × 2 = 16/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
27/12 = 27 × 15/12 × 15 = 405/180 - Add the two like fractions:
16/180 + 405/180 = 16 + 405/180 = 421/180 - So, 8/90 + 27/12 = 421/180
In mixed form: 261/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/90+27/12 8/90+54/12 8/90+27/24 24/90+27/12 8/90+81/12 8/90+27/36 40/90+27/12 8/90+27/60 56/90+27/12 8/90+27/84