Add 27/45 and 18/15
1st number: 27/45, 2nd number: 1 3/15
27/45 + 18/15 is 9/5.
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,
27/45 = 27 × 1/45 × 1 = 27/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
18/15 = 18 × 3/15 × 3 = 54/45 - Add the two like fractions:
27/45 + 54/45 = 27 + 54/45 = 81/45 - 81/45 simplified gives 9/5
- So, 27/45 + 18/15 = 9/5
In mixed form: 14/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/45+18/15 27/45+36/15 27/90+18/15 27/45+18/30 81/45+18/15 27/45+54/15 27/45+18/45 27/45+90/15 27/45+18/75