Add 5/90 and 3/12
5/90 + 3/12 is 11/36.
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,
5/90 = 5 × 2/90 × 2 = 10/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
3/12 = 3 × 15/12 × 15 = 45/180 - Add the two like fractions:
10/180 + 45/180 = 10 + 45/180 = 55/180 - 55/180 simplified gives 11/36
- So, 5/90 + 3/12 = 11/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/90+3/12 5/90+6/12 5/90+3/24 15/90+3/12 5/90+9/12 5/90+3/36 25/90+3/12 5/90+15/12 5/90+3/60 35/90+3/12 5/90+21/12 5/90+3/84