Add 40/18 and 50/15
1st number: 2 4/18, 2nd number: 3 5/15
40/18 + 50/15 is 50/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
40/18 = 40 × 5/18 × 5 = 200/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
50/15 = 50 × 6/15 × 6 = 300/90 - Add the two like fractions:
200/90 + 300/90 = 200 + 300/90 = 500/90 - 500/90 simplified gives 50/9
- So, 40/18 + 50/15 = 50/9
In mixed form: 55/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18+50/15 40/36+50/15 40/18+50/30 40/54+50/15 40/18+50/45 40/90+50/15 40/18+50/75