Subtract 75/28 from 72/18
1st number: 4 0/18, 2nd number: 2 19/28
72/18 - 75/28 is 37/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
72/18 = 72 × 14/18 × 14 = 1008/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
75/28 = 75 × 9/28 × 9 = 675/252 - Subtract the two like fractions:
1008/252 - 675/252 = 1008 - 675/252 = 333/252 - After reducing the fraction, the answer is 37/28
- In mixed form: 19/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/36-75/28 72/18-75/56 72/54-75/28 72/18-75/84 72/90-75/28