Subtract 42/50 from 27/56
27/56 - 42/50 is -501/1400.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 50 is 1400
Next, find the equivalent fraction of both fractional numbers with denominator 1400 - For the 1st fraction, since 56 × 25 = 1400,
27/56 = 27 × 25/56 × 25 = 675/1400 - Likewise, for the 2nd fraction, since 50 × 28 = 1400,
42/50 = 42 × 28/50 × 28 = 1176/1400 - Subtract the two like fractions:
675/1400 - 1176/1400 = 675 - 1176/1400 = -501/1400
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/56-42/50 27/56-84/50 81/56-42/50