Add 40/18 and 16/90
1st number: 2 4/18, 2nd number: 16/90
40/18 + 16/90 is 12/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 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 90 × 1 = 90,
16/90 = 16 × 1/90 × 1 = 16/90 - Add the two like fractions:
200/90 + 16/90 = 200 + 16/90 = 216/90 - 216/90 simplified gives 12/5
- So, 40/18 + 16/90 = 12/5
In mixed form: 22/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18+16/90 40/18+32/90 40/36+16/90 40/18+48/90 40/54+16/90 40/18+80/90 40/90+16/90