Subtract 18/96 from 4/45
4/45 - 18/96 is -71/720.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 96 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 45 × 32 = 1440,
4/45 = 4 × 32/45 × 32 = 128/1440 - Likewise, for the 2nd fraction, since 96 × 15 = 1440,
18/96 = 18 × 15/96 × 15 = 270/1440 - Subtract the two like fractions:
128/1440 - 270/1440 = 128 - 270/1440 = -142/1440 - After reducing the fraction, the answer is -71/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45-18/96 4/45-36/96 4/90-18/96 12/45-18/96 4/45-54/96 20/45-18/96 4/45-90/96 28/45-18/96