Add 7/20 and 1/18
7/20 + 1/18 is 73/180.
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,
7/20 = 7 × 9/20 × 9 = 63/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
1/18 = 1 × 10/18 × 10 = 10/180 - Add the two like fractions:
63/180 + 10/180 = 63 + 10/180 = 73/180 - So, 7/20 + 1/18 = 73/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/20+1/18 7/20+2/18 7/40+1/18 7/20+1/36 21/20+1/18 7/20+3/18 7/60+1/18 7/20+1/54 35/20+1/18 7/20+5/18 7/20+1/90 49/20+1/18 7/20+7/18