Subtract 40/48 from 4/5
4/5 - 40/48 is -1/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 5 × 48 = 240,
4/5 = 4 × 48/5 × 48 = 192/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
40/48 = 40 × 5/48 × 5 = 200/240 - Subtract the two like fractions:
192/240 - 200/240 = 192 - 200/240 = -8/240 - 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: 8/5-40/48 4/5-80/48 4/10-40/48 4/5-40/96 12/5-40/48 4/15-40/48 20/5-40/48 4/25-40/48 28/5-40/48 4/35-40/48