Subtract 14/40 from 15/63
15/63 - 14/40 is -47/420.
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,
15/63 = 15 × 40/63 × 40 = 600/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
14/40 = 14 × 63/40 × 63 = 882/2520 - Subtract the two like fractions:
600/2520 - 882/2520 = 600 - 882/2520 = -282/2520 - After reducing the fraction, the answer is -47/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/63-14/40 15/63-28/40 15/63-14/80 45/63-14/40 15/63-42/40 75/63-14/40 15/63-70/40 15/63-98/40