Add 18/54 and 40/15
1st number: 18/54, 2nd number: 2 10/15
18/54 + 40/15 is 3/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 15 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
18/54 = 18 × 5/54 × 5 = 90/270 - Likewise, for the 2nd fraction, since 15 × 18 = 270,
40/15 = 40 × 18/15 × 18 = 720/270 - Add the two like fractions:
90/270 + 720/270 = 90 + 720/270 = 810/270 - 810/270 simplified gives 3/1
- So, 18/54 + 40/15 = 3/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/54+40/15 18/54+80/15 18/54+40/30 18/54+40/45 90/54+40/15 18/54+40/75