Add 18/8 and 72/36
1st number: 2 2/8, 2nd number: 2 0/36
18/8 + 72/36 is 17/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 36 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
18/8 = 18 × 9/8 × 9 = 162/72 - Likewise, for the 2nd fraction, since 36 × 2 = 72,
72/36 = 72 × 2/36 × 2 = 144/72 - Add the two like fractions:
162/72 + 144/72 = 162 + 144/72 = 306/72 - 306/72 simplified gives 17/4
- So, 18/8 + 72/36 = 17/4
In mixed form: 41/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/8+72/36 18/16+72/36 54/8+72/36 18/24+72/36 90/8+72/36 18/40+72/36 18/56+72/36