Add 27/20 and 8/18
1st number: 1 7/20, 2nd number: 8/18
27/20 + 8/18 is 323/180.
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,
27/20 = 27 × 9/20 × 9 = 243/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
8/18 = 8 × 10/18 × 10 = 80/180 - Add the two like fractions:
243/180 + 80/180 = 243 + 80/180 = 323/180 - So, 27/20 + 8/18 = 323/180
In mixed form: 1143/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20+8/18 27/20+16/18 27/40+8/18 27/20+8/36 81/20+8/18 27/20+24/18 27/60+8/18 27/20+8/54 27/20+40/18 27/20+8/90 27/20+56/18