Subtract 14/81 from 4/40
4/40 - 14/81 is -59/810.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 81 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 40 × 81 = 3240,
4/40 = 4 × 81/40 × 81 = 324/3240 - Likewise, for the 2nd fraction, since 81 × 40 = 3240,
14/81 = 14 × 40/81 × 40 = 560/3240 - Subtract the two like fractions:
324/3240 - 560/3240 = 324 - 560/3240 = -236/3240 - After reducing the fraction, the answer is -59/810
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/40-14/81 4/40-28/81 4/80-14/81 12/40-14/81 4/40-42/81 20/40-14/81 4/40-70/81 28/40-14/81 4/40-98/81