Subtract 54/14 from 63/40
1st number: 1 23/40, 2nd number: 3 12/14
63/40 - 54/14 is -639/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 14 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
63/40 = 63 × 7/40 × 7 = 441/280 - Likewise, for the 2nd fraction, since 14 × 20 = 280,
54/14 = 54 × 20/14 × 20 = 1080/280 - Subtract the two like fractions:
441/280 - 1080/280 = 441 - 1080/280 = -639/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/80-54/14 63/40-54/28 63/40-54/42 63/40-54/70 63/40-54/98