Subtract 4/64 from 7/27
7/27 - 4/64 is 85/432.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 64 is 1728
Next, find the equivalent fraction of both fractional numbers with denominator 1728 - For the 1st fraction, since 27 × 64 = 1728,
7/27 = 7 × 64/27 × 64 = 448/1728 - Likewise, for the 2nd fraction, since 64 × 27 = 1728,
4/64 = 4 × 27/64 × 27 = 108/1728 - Subtract the two like fractions:
448/1728 - 108/1728 = 448 - 108/1728 = 340/1728 - After reducing the fraction, the answer is 85/432
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/27-4/64 7/27-8/64 7/54-4/64 21/27-4/64 7/27-12/64 7/81-4/64 35/27-4/64 7/27-20/64 49/27-4/64 7/27-28/64