Subtract 15/48 from 1/40
1/40 - 15/48 is -23/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 40 × 6 = 240,
1/40 = 1 × 6/40 × 6 = 6/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
15/48 = 15 × 5/48 × 5 = 75/240 - Subtract the two like fractions:
6/240 - 75/240 = 6 - 75/240 = -69/240 - After reducing the fraction, the answer is -23/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/40-15/48 1/40-30/48 1/80-15/48 1/40-15/96 3/40-15/48 1/40-45/48 5/40-15/48 1/40-75/48 7/40-15/48