Subtract 8/36 from 42/28
1st number: 1 14/28, 2nd number: 8/36
42/28 - 8/36 is 23/18.
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,
8/36 = 8 × 7/36 × 7 = 56/252 - Subtract the two like fractions:
378/252 - 56/252 = 378 - 56/252 = 322/252 - After reducing the fraction, the answer is 23/18
- In mixed form: 15/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28-8/36 42/28-16/36 42/56-8/36 42/28-8/72 42/28-24/36 42/84-8/36 42/28-40/36 42/28-56/36