Subtract 8/40 from 40/63
40/63 - 8/40 is 137/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 40 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 63 × 40 = 2520,
40/63 = 40 × 40/63 × 40 = 1600/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
8/40 = 8 × 63/40 × 63 = 504/2520 - Subtract the two like fractions:
1600/2520 - 504/2520 = 1600 - 504/2520 = 1096/2520 - After reducing the fraction, the answer is 137/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/63-8/40 40/63-16/40 40/63-8/80 40/63-24/40 40/63-56/40