Add 12/45 and 54/15
1st number: 12/45, 2nd number: 3 9/15
12/45 + 54/15 is 58/15.
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,
54/15 = 54 × 3/15 × 3 = 162/45 - Add the two like fractions:
12/45 + 162/45 = 12 + 162/45 = 174/45 - 174/45 simplified gives 58/15
- So, 12/45 + 54/15 = 58/15
In mixed form: 313/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/45+54/15 12/90+54/15 12/45+54/30 36/45+54/15 12/45+54/45 60/45+54/15 12/45+54/75 84/45+54/15