Subtract 5/7 from 40/63
40/63 - 5/7 is -5/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
40/63 = 40 × 1/63 × 1 = 40/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
5/7 = 5 × 9/7 × 9 = 45/63 - Subtract the two like fractions:
40/63 - 45/63 = 40 - 45/63 = -5/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/63-5/7 40/63-10/7 40/63-5/14 40/63-15/7 40/63-5/21 40/63-25/7 40/63-5/35 40/63-35/7 40/63-5/49