Subtract 27/60 from 18/56
18/56 - 27/60 is -9/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 60 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
18/56 = 18 × 15/56 × 15 = 270/840 - Likewise, for the 2nd fraction, since 60 × 14 = 840,
27/60 = 27 × 14/60 × 14 = 378/840 - Subtract the two like fractions:
270/840 - 378/840 = 270 - 378/840 = -108/840 - After reducing the fraction, the answer is -9/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/56-27/60 18/56-54/60 54/56-27/60 18/56-81/60 90/56-27/60