Add 90/3 and 12/15
1st number: 30 0/3, 2nd number: 12/15
90/3 + 12/15 is 154/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 15 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 3 × 5 = 15,
90/3 = 90 × 5/3 × 5 = 450/15 - Likewise, for the 2nd fraction, since 15 × 1 = 15,
12/15 = 12 × 1/15 × 1 = 12/15 - Add the two like fractions:
450/15 + 12/15 = 450 + 12/15 = 462/15 - 462/15 simplified gives 154/5
- So, 90/3 + 12/15 = 154/5
In mixed form: 304/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/3+24/15 90/6+12/15 90/3+12/30 90/3+36/15 90/9+12/15 90/3+12/45 90/3+60/15 90/15+12/15 90/3+12/75 90/3+84/15 90/21+12/15