Subtract 12/20 from 40/63
40/63 - 12/20 is 11/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
40/63 = 40 × 20/63 × 20 = 800/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
12/20 = 12 × 63/20 × 63 = 756/1260 - Subtract the two like fractions:
800/1260 - 756/1260 = 800 - 756/1260 = 44/1260 - After reducing the fraction, the answer is 11/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/63-12/20 40/63-24/20 40/63-12/40 40/63-36/20 40/63-12/60 40/63-60/20 40/63-84/20