Add 3/20 and 81/18
1st number: 3/20, 2nd number: 4 9/18
3/20 + 81/18 is 93/20.
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,
3/20 = 3 × 9/20 × 9 = 27/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
81/18 = 81 × 10/18 × 10 = 810/180 - Add the two like fractions:
27/180 + 810/180 = 27 + 810/180 = 837/180 - 837/180 simplified gives 93/20
- So, 3/20 + 81/18 = 93/20
In mixed form: 413/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20+81/18 3/40+81/18 3/20+81/36 9/20+81/18 3/60+81/18 3/20+81/54 15/20+81/18 3/20+81/90 21/20+81/18