Subtract 42/28 from 25/36
1st number: 25/36, 2nd number: 1 14/28
25/36 - 42/28 is -29/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
25/36 = 25 × 7/36 × 7 = 175/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
42/28 = 42 × 9/28 × 9 = 378/252 - Subtract the two like fractions:
175/252 - 378/252 = 175 - 378/252 = -203/252 - After reducing the fraction, the answer is -29/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/36-42/28 25/36-84/28 25/72-42/28 25/36-42/56 75/36-42/28 25/36-42/84