Add 7/20 and 3/36
7/20 + 3/36 is 13/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 36 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 36 × 5 = 180,
3/36 = 3 × 5/36 × 5 = 15/180 - Add the two like fractions:
63/180 + 15/180 = 63 + 15/180 = 78/180 - 78/180 simplified gives 13/30
- So, 7/20 + 3/36 = 13/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/20+3/36 7/20+6/36 7/40+3/36 7/20+3/72 21/20+3/36 7/20+9/36 7/60+3/36 35/20+3/36 7/20+15/36 49/20+3/36 7/20+21/36