Add 54/36 and 42/15
1st number: 1 18/36, 2nd number: 2 12/15
54/36 + 42/15 is 43/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 15 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
54/36 = 54 × 5/36 × 5 = 270/180 - Likewise, for the 2nd fraction, since 15 × 12 = 180,
42/15 = 42 × 12/15 × 12 = 504/180 - Add the two like fractions:
270/180 + 504/180 = 270 + 504/180 = 774/180 - 774/180 simplified gives 43/10
- So, 54/36 + 42/15 = 43/10
In mixed form: 43/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/36+84/15 54/72+42/15 54/36+42/30 54/36+42/45 54/36+42/75