Add 18/4 and 20/18
1st number: 4 2/4, 2nd number: 1 2/18
18/4 + 20/18 is 101/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
18/4 = 18 × 9/4 × 9 = 162/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
20/18 = 20 × 2/18 × 2 = 40/36 - Add the two like fractions:
162/36 + 40/36 = 162 + 40/36 = 202/36 - 202/36 simplified gives 101/18
- So, 18/4 + 20/18 = 101/18
In mixed form: 511/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/4+20/18 18/4+40/18 18/8+20/18 18/4+20/36 54/4+20/18 18/4+60/18 18/12+20/18 18/4+20/54 90/4+20/18 18/20+20/18 18/4+20/90 18/28+20/18