Subtract 15/54 from 9/10
9/10 - 15/54 is 28/45.
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,
9/10 = 9 × 27/10 × 27 = 243/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
15/54 = 15 × 5/54 × 5 = 75/270 - Subtract the two like fractions:
243/270 - 75/270 = 243 - 75/270 = 168/270 - After reducing the fraction, the answer is 28/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/10-15/54 9/10-30/54 9/20-15/54 27/10-15/54 9/10-45/54 9/30-15/54 45/10-15/54 9/10-75/54 9/50-15/54 63/10-15/54 9/70-15/54