Subtract 8/21 from 8/48
8/48 - 8/21 is -3/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
8/48 = 8 × 7/48 × 7 = 56/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
8/21 = 8 × 16/21 × 16 = 128/336 - Subtract the two like fractions:
56/336 - 128/336 = 56 - 128/336 = -72/336 - After reducing the fraction, the answer is -3/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/48-8/21 8/48-16/21 8/96-8/21 8/48-8/42 24/48-8/21 8/48-24/21 8/48-8/63 40/48-8/21 8/48-40/21 56/48-8/21 8/48-56/21