Answers

Subtract 4/63 from 42/64

42/64 - 4/63 is 1195/2016.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 63 is 4032
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4032
2. For the 1st fraction, since 64 × 63 = 4032,
   42/64 = 42 × 63/64 × 63 = 2646/4032
3. Likewise, for the 2nd fraction, since 63 × 64 = 4032,
   4/63 = 4 × 64/63 × 64 = 256/4032
4. Subtract the two like fractions:
   2646/4032 - 256/4032 = 2646 - 256/4032 = 2390/4032
5. After reducing the fraction, the answer is 1195/2016

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁸⁴/₆₄-⁴/₆₃ ⁴²/₆₄-⁸/₆₃ ⁴²/₆₄-¹²/₆₃ ⁴²/₆₄-²⁰/₆₃ ⁴²/₆₄-²⁸/₆₃

Subtract Fractions Calculator