Add 4/3 and 12/90
1st number: 1 1/3, 2nd number: 12/90
4/3 + 12/90 is 22/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
4/3 = 4 × 30/3 × 30 = 120/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
12/90 = 12 × 1/90 × 1 = 12/90 - Add the two like fractions:
120/90 + 12/90 = 120 + 12/90 = 132/90 - 132/90 simplified gives 22/15
- So, 4/3 + 12/90 = 22/15
In mixed form: 17/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/3+12/90 4/3+24/90 4/6+12/90 12/3+12/90 4/3+36/90 4/9+12/90 20/3+12/90 4/3+60/90 4/15+12/90 28/3+12/90 4/3+84/90 4/21+12/90