Subtract 4/84 from 3/8
3/8 - 4/84 is 55/168.
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,
4/84 = 4 × 2/84 × 2 = 8/168 - Subtract the two like fractions:
63/168 - 8/168 = 63 - 8/168 = 55/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/8-4/84 3/8-8/84 3/16-4/84 9/8-4/84 3/8-12/84 3/24-4/84 15/8-4/84 3/8-20/84 3/40-4/84 21/8-4/84 3/8-28/84 3/56-4/84