Subtract 10/64 from 4/42
4/42 - 10/64 is -41/672.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 64 is 1344
Next, find the equivalent fraction of both fractional numbers with denominator 1344 - For the 1st fraction, since 42 × 32 = 1344,
4/42 = 4 × 32/42 × 32 = 128/1344 - Likewise, for the 2nd fraction, since 64 × 21 = 1344,
10/64 = 10 × 21/64 × 21 = 210/1344 - Subtract the two like fractions:
128/1344 - 210/1344 = 128 - 210/1344 = -82/1344 - After reducing the fraction, the answer is -41/672
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/42-10/64 4/42-20/64 4/84-10/64 12/42-10/64 4/42-30/64 20/42-10/64 4/42-50/64 28/42-10/64 4/42-70/64