Subtract 4/45 from 4/64
4/64 - 4/45 is -19/720.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 45 is 2880
Next, find the equivalent fraction of both fractional numbers with denominator 2880 - For the 1st fraction, since 64 × 45 = 2880,
4/64 = 4 × 45/64 × 45 = 180/2880 - Likewise, for the 2nd fraction, since 45 × 64 = 2880,
4/45 = 4 × 64/45 × 64 = 256/2880 - Subtract the two like fractions:
180/2880 - 256/2880 = 180 - 256/2880 = -76/2880 - After reducing the fraction, the answer is -19/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/64-4/45 4/64-8/45 4/64-4/90 12/64-4/45 4/64-12/45 20/64-4/45 4/64-20/45 28/64-4/45 4/64-28/45