Subtract 42/64 from 8/14
8/14 - 42/64 is -19/224.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 64 is 448
Next, find the equivalent fraction of both fractional numbers with denominator 448 - For the 1st fraction, since 14 × 32 = 448,
8/14 = 8 × 32/14 × 32 = 256/448 - Likewise, for the 2nd fraction, since 64 × 7 = 448,
42/64 = 42 × 7/64 × 7 = 294/448 - Subtract the two like fractions:
256/448 - 294/448 = 256 - 294/448 = -38/448 - After reducing the fraction, the answer is -19/224
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/14-42/64 8/14-84/64 8/28-42/64 24/14-42/64 8/42-42/64 40/14-42/64 8/70-42/64 56/14-42/64 8/98-42/64