Add 2/90 and 80/12
1st number: 2/90, 2nd number: 6 8/12
2/90 + 80/12 is 301/45.
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,
2/90 = 2 × 2/90 × 2 = 4/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
80/12 = 80 × 15/12 × 15 = 1200/180 - Add the two like fractions:
4/180 + 1200/180 = 4 + 1200/180 = 1204/180 - 1204/180 simplified gives 301/45
- So, 2/90 + 80/12 = 301/45
In mixed form: 631/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/90+80/12 2/90+80/24 6/90+80/12 2/90+80/36 10/90+80/12 2/90+80/60 14/90+80/12 2/90+80/84