Add 10/15 and 45/12
1st number: 10/15, 2nd number: 3 9/12
10/15 + 45/12 is 53/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
10/15 = 10 × 4/15 × 4 = 40/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
45/12 = 45 × 5/12 × 5 = 225/60 - Add the two like fractions:
40/60 + 225/60 = 40 + 225/60 = 265/60 - 265/60 simplified gives 53/12
- So, 10/15 + 45/12 = 53/12
In mixed form: 45/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/15+45/12 10/15+90/12 10/30+45/12 10/15+45/24 30/15+45/12 10/45+45/12 10/15+45/36 50/15+45/12 10/75+45/12 10/15+45/60 70/15+45/12 10/15+45/84