Add 6/18 and 8/20
6/18 + 8/20 is 11/15.
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,
6/18 = 6 × 10/18 × 10 = 60/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
8/20 = 8 × 9/20 × 9 = 72/180 - Add the two like fractions:
60/180 + 72/180 = 60 + 72/180 = 132/180 - 132/180 simplified gives 11/15
- So, 6/18 + 8/20 = 11/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/18+8/20 6/18+16/20 6/36+8/20 6/18+8/40 6/18+24/20 6/54+8/20 6/18+8/60 30/18+8/20 6/18+40/20 6/90+8/20 42/18+8/20 6/18+56/20