Subtract 54/18 from 18/10
1st number: 1 8/10, 2nd number: 3 0/18
18/10 - 54/18 is -6/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
18/10 = 18 × 9/10 × 9 = 162/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
54/18 = 54 × 5/18 × 5 = 270/90 - Subtract the two like fractions:
162/90 - 270/90 = 162 - 270/90 = -108/90 - After reducing the fraction, the answer is -6/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/10-54/18 18/20-54/18 18/10-54/36 54/10-54/18 18/30-54/18 90/10-54/18 18/50-54/18 18/10-54/90 18/70-54/18