Subtract 54/10 from 12/18
1st number: 12/18, 2nd number: 5 4/10
12/18 - 54/10 is -71/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
12/18 = 12 × 5/18 × 5 = 60/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
54/10 = 54 × 9/10 × 9 = 486/90 - Subtract the two like fractions:
60/90 - 486/90 = 60 - 486/90 = -426/90 - After reducing the fraction, the answer is -71/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/18-54/10 12/36-54/10 12/18-54/20 36/18-54/10 12/54-54/10 12/18-54/30 60/18-54/10 12/90-54/10 12/18-54/50 84/18-54/10 12/18-54/70