Subtract 63/54 from 40/63
1st number: 40/63, 2nd number: 1 9/54
40/63 - 63/54 is -67/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 63 × 6 = 378,
40/63 = 40 × 6/63 × 6 = 240/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
63/54 = 63 × 7/54 × 7 = 441/378 - Subtract the two like fractions:
240/378 - 441/378 = 240 - 441/378 = -201/378 - After reducing the fraction, the answer is -67/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/63-63/54