Add 15/90 and 14/12
1st number: 15/90, 2nd number: 1 2/12
15/90 + 14/12 is 4/3.
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,
15/90 = 15 × 2/90 × 2 = 30/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
14/12 = 14 × 15/12 × 15 = 210/180 - Add the two like fractions:
30/180 + 210/180 = 30 + 210/180 = 240/180 - 240/180 simplified gives 4/3
- So, 15/90 + 14/12 = 4/3
In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90+14/12 15/90+28/12 15/90+14/24 45/90+14/12 15/90+42/12 15/90+14/36 75/90+14/12 15/90+70/12 15/90+14/60 15/90+98/12 15/90+14/84