Subtract 10/54 from 9/40
9/40 - 10/54 is 43/1080.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 54 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
9/40 = 9 × 27/40 × 27 = 243/1080 - Likewise, for the 2nd fraction, since 54 × 20 = 1080,
10/54 = 10 × 20/54 × 20 = 200/1080 - Subtract the two like fractions:
243/1080 - 200/1080 = 243 - 200/1080 = 43/1080
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/40-10/54 9/40-20/54 9/80-10/54 27/40-10/54 9/40-30/54 45/40-10/54 9/40-50/54 63/40-10/54 9/40-70/54