Add 36/72 and 20/18
1st number: 36/72, 2nd number: 1 2/18
36/72 + 20/18 is 29/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
36/72 = 36 × 1/72 × 1 = 36/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
20/18 = 20 × 4/18 × 4 = 80/72 - Add the two like fractions:
36/72 + 80/72 = 36 + 80/72 = 116/72 - 116/72 simplified gives 29/18
- So, 36/72 + 20/18 = 29/18
In mixed form: 111/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/72+40/18 36/72+20/36 36/72+60/18 36/72+20/54 36/72+20/90