Subtract 42/63 from 45/96
45/96 - 42/63 is -19/96.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 63 is 2016
Next, find the equivalent fraction of both fractional numbers with denominator 2016 - For the 1st fraction, since 96 × 21 = 2016,
45/96 = 45 × 21/96 × 21 = 945/2016 - Likewise, for the 2nd fraction, since 63 × 32 = 2016,
42/63 = 42 × 32/63 × 32 = 1344/2016 - Subtract the two like fractions:
945/2016 - 1344/2016 = 945 - 1344/2016 = -399/2016 - After reducing the fraction, the answer is -19/96
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/96-42/63 45/96-84/63