Add 36/18 and 18/72
1st number: 2 0/18, 2nd number: 18/72
36/18 + 18/72 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
36/18 = 36 × 4/18 × 4 = 144/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
18/72 = 18 × 1/72 × 1 = 18/72 - Add the two like fractions:
144/72 + 18/72 = 144 + 18/72 = 162/72 - 162/72 simplified gives 9/4
- So, 36/18 + 18/72 = 9/4
In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18+18/72 36/18+36/72 36/18+54/72 36/54+18/72 36/18+90/72 36/90+18/72