Subtract 5/18 from 42/28
1st number: 1 14/28, 2nd number: 5/18
42/28 - 5/18 is 11/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
42/28 = 42 × 9/28 × 9 = 378/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
5/18 = 5 × 14/18 × 14 = 70/252 - Subtract the two like fractions:
378/252 - 70/252 = 378 - 70/252 = 308/252 - After reducing the fraction, the answer is 11/9
- In mixed form: 12/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28-5/18 42/28-10/18 42/56-5/18 42/28-5/36 42/28-15/18 42/84-5/18 42/28-5/54 42/28-25/18 42/28-5/90 42/28-35/18