Add 6/20 and 8/18
6/20 + 8/18 is 67/90.
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,
6/20 = 6 × 9/20 × 9 = 54/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
8/18 = 8 × 10/18 × 10 = 80/180 - Add the two like fractions:
54/180 + 80/180 = 54 + 80/180 = 134/180 - 134/180 simplified gives 67/90
- So, 6/20 + 8/18 = 67/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/20+8/18 6/20+16/18 6/40+8/18 6/20+8/36 18/20+8/18 6/20+24/18 6/60+8/18 6/20+8/54 30/20+8/18 6/20+40/18 6/20+8/90 42/20+8/18 6/20+56/18