Add 75/18 and 84/72
1st number: 4 3/18, 2nd number: 1 12/72
75/18 + 84/72 is 16/3.
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,
75/18 = 75 × 4/18 × 4 = 300/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
84/72 = 84 × 1/72 × 1 = 84/72 - Add the two like fractions:
300/72 + 84/72 = 300 + 84/72 = 384/72 - 384/72 simplified gives 16/3
- So, 75/18 + 84/72 = 16/3
In mixed form: 51/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/36+84/72 75/54+84/72 75/90+84/72