Subtract 4/40 from 24/81
24/81 - 4/40 is 53/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 40 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 81 × 40 = 3240,
24/81 = 24 × 40/81 × 40 = 960/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
4/40 = 4 × 81/40 × 81 = 324/3240 - Subtract the two like fractions:
960/3240 - 324/3240 = 960 - 324/3240 = 636/3240 - After reducing the fraction, the answer is 53/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/81-4/40 24/81-8/40 24/81-4/80 72/81-4/40 24/81-12/40 24/81-20/40 24/81-28/40