Subtract 4/64 from 42/5
1st number: 8 2/5, 2nd number: 4/64
42/5 - 4/64 is 667/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 64 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 5 × 64 = 320,
42/5 = 42 × 64/5 × 64 = 2688/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
4/64 = 4 × 5/64 × 5 = 20/320 - Subtract the two like fractions:
2688/320 - 20/320 = 2688 - 20/320 = 2668/320 - After reducing the fraction, the answer is 667/80
- In mixed form: 827/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5-4/64 42/5-8/64 42/10-4/64 42/5-12/64 42/15-4/64 42/5-20/64 42/25-4/64 42/5-28/64 42/35-4/64