Add 18/72 and 15/4
1st number: 18/72, 2nd number: 3 3/4
18/72 + 15/4 is 4/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 4 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
18/72 = 18 × 1/72 × 1 = 18/72 - Likewise, for the 2nd fraction, since 4 × 18 = 72,
15/4 = 15 × 18/4 × 18 = 270/72 - Add the two like fractions:
18/72 + 270/72 = 18 + 270/72 = 288/72 - 288/72 simplified gives 4/1
- So, 18/72 + 15/4 = 4/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/72+15/4 18/72+30/4 18/72+15/8 54/72+15/4 18/72+45/4 18/72+15/12 90/72+15/4 18/72+75/4 18/72+15/20 18/72+15/28