Add 1/20 and 40/18
1st number: 1/20, 2nd number: 2 4/18
1/20 + 40/18 is 409/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
1/20 = 1 × 9/20 × 9 = 9/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
40/18 = 40 × 10/18 × 10 = 400/180 - Add the two like fractions:
9/180 + 400/180 = 9 + 400/180 = 409/180 - So, 1/20 + 40/18 = 409/180
In mixed form: 249/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20+40/18 1/20+80/18 1/40+40/18 1/20+40/36 3/20+40/18 1/60+40/18 1/20+40/54 5/20+40/18 1/20+40/90 7/20+40/18