Subtract 45/54 from 8/10
8/10 - 45/54 is -1/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 10 × 27 = 270,
8/10 = 8 × 27/10 × 27 = 216/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
45/54 = 45 × 5/54 × 5 = 225/270 - Subtract the two like fractions:
216/270 - 225/270 = 216 - 225/270 = -9/270 - After reducing the fraction, the answer is -1/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/10-45/54 8/10-90/54 8/20-45/54 24/10-45/54 8/30-45/54 40/10-45/54 8/50-45/54 56/10-45/54 8/70-45/54