Subtract 28/84 from 3/8
3/8 - 28/84 is 1/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
3/8 = 3 × 21/8 × 21 = 63/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
28/84 = 28 × 2/84 × 2 = 56/168 - Subtract the two like fractions:
63/168 - 56/168 = 63 - 56/168 = 7/168 - After reducing the fraction, the answer is 1/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/8-28/84 3/8-56/84 3/16-28/84 9/8-28/84 3/24-28/84 15/8-28/84 3/40-28/84 21/8-28/84 3/56-28/84