Add 4/18 and 6/20
4/18 + 6/20 is 47/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
4/18 = 4 × 10/18 × 10 = 40/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
6/20 = 6 × 9/20 × 9 = 54/180 - Add the two like fractions:
40/180 + 54/180 = 40 + 54/180 = 94/180 - 94/180 simplified gives 47/90
- So, 4/18 + 6/20 = 47/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/18+6/20 4/18+12/20 4/36+6/20 4/18+6/40 12/18+6/20 4/18+18/20 4/54+6/20 4/18+6/60 20/18+6/20 4/18+30/20 4/90+6/20 28/18+6/20 4/18+42/20