Add 12/45 and 12/15
12/45 + 12/15 is 16/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
12/45 = 12 × 1/45 × 1 = 12/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
12/15 = 12 × 3/15 × 3 = 36/45 - Add the two like fractions:
12/45 + 36/45 = 12 + 36/45 = 48/45 - 48/45 simplified gives 16/15
- So, 12/45 + 12/15 = 16/15
In mixed form: 11/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/45+12/15 12/45+24/15 12/90+12/15 12/45+12/30 36/45+12/15 12/45+36/15 12/45+12/45 60/45+12/15 12/45+60/15 12/45+12/75 84/45+12/15 12/45+84/15