Add 27/20 and 1/18
1st number: 1 7/20, 2nd number: 1/18
27/20 + 1/18 is 253/180.
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,
1/18 = 1 × 10/18 × 10 = 10/180 - Add the two like fractions:
243/180 + 10/180 = 243 + 10/180 = 253/180 - So, 27/20 + 1/18 = 253/180
In mixed form: 173/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20+1/18 27/20+2/18 27/40+1/18 27/20+1/36 81/20+1/18 27/20+3/18 27/60+1/18 27/20+1/54 27/20+5/18 27/20+1/90 27/20+7/18