Subtract 12/28 from 75/18
1st number: 4 3/18, 2nd number: 12/28
75/18 - 12/28 is 157/42.
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,
75/18 = 75 × 14/18 × 14 = 1050/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
12/28 = 12 × 9/28 × 9 = 108/252 - Subtract the two like fractions:
1050/252 - 108/252 = 1050 - 108/252 = 942/252 - After reducing the fraction, the answer is 157/42
- In mixed form: 331/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/18-24/28 75/36-12/28 75/18-12/56 75/18-36/28 75/54-12/28 75/18-12/84 75/18-60/28 75/90-12/28 75/18-84/28