Add 45/27 and 18/15
1st number: 1 18/27, 2nd number: 1 3/15
45/27 + 18/15 is 43/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 15 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
45/27 = 45 × 5/27 × 5 = 225/135 - Likewise, for the 2nd fraction, since 15 × 9 = 135,
18/15 = 18 × 9/15 × 9 = 162/135 - Add the two like fractions:
225/135 + 162/135 = 225 + 162/135 = 387/135 - 387/135 simplified gives 43/15
- So, 45/27 + 18/15 = 43/15
In mixed form: 213/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/27+18/15 45/27+36/15 45/54+18/15 45/27+18/30 45/27+54/15 45/81+18/15 45/27+18/45 45/27+90/15 45/27+18/75