Add 12/15 and 90/6
1st number: 12/15, 2nd number: 15 0/6
12/15 + 90/6 is 79/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 6 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
12/15 = 12 × 2/15 × 2 = 24/30 - Likewise, for the 2nd fraction, since 6 × 5 = 30,
90/6 = 90 × 5/6 × 5 = 450/30 - Add the two like fractions:
24/30 + 450/30 = 24 + 450/30 = 474/30 - 474/30 simplified gives 79/5
- So, 12/15 + 90/6 = 79/5
In mixed form: 154/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/15+90/6 12/30+90/6 12/15+90/12 36/15+90/6 12/45+90/6 12/15+90/18 60/15+90/6 12/75+90/6 12/15+90/30 84/15+90/6 12/15+90/42