Subtract 24/40 from 7/54
7/54 - 24/40 is -127/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 40 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 54 × 20 = 1080,
7/54 = 7 × 20/54 × 20 = 140/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
24/40 = 24 × 27/40 × 27 = 648/1080 - Subtract the two like fractions:
140/1080 - 648/1080 = 140 - 648/1080 = -508/1080 - After reducing the fraction, the answer is -127/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/54-24/40 7/54-48/40 7/54-24/80 21/54-24/40 7/54-72/40 35/54-24/40 49/54-24/40