Subtract 27/18 from 32/28
1st number: 1 4/28, 2nd number: 1 9/18
32/28 - 27/18 is -5/14.
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,
32/28 = 32 × 9/28 × 9 = 288/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
27/18 = 27 × 14/18 × 14 = 378/252 - Subtract the two like fractions:
288/252 - 378/252 = 288 - 378/252 = -90/252 - After reducing the fraction, the answer is -5/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/28-27/18 32/28-54/18 32/56-27/18 32/28-27/36 96/28-27/18 32/28-81/18 32/84-27/18 32/28-27/54 32/28-27/90