Subtract 4/36 from 42/28
1st number: 1 14/28, 2nd number: 4/36
42/28 - 4/36 is 25/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 36 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 36 × 7 = 252,
4/36 = 4 × 7/36 × 7 = 28/252 - Subtract the two like fractions:
378/252 - 28/252 = 378 - 28/252 = 350/252 - After reducing the fraction, the answer is 25/18
- In mixed form: 17/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28-4/36 42/28-8/36 42/56-4/36 42/28-4/72 42/28-12/36 42/84-4/36 42/28-20/36 42/28-28/36