Subtract 3/84 from 12/8
1st number: 1 4/8, 2nd number: 3/84
12/8 - 3/84 is 41/28.
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,
12/8 = 12 × 21/8 × 21 = 252/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
3/84 = 3 × 2/84 × 2 = 6/168 - Subtract the two like fractions:
252/168 - 6/168 = 252 - 6/168 = 246/168 - After reducing the fraction, the answer is 41/28
- In mixed form: 113/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/8-3/84 12/8-6/84 12/16-3/84 36/8-3/84 12/8-9/84 12/24-3/84 60/8-3/84 12/8-15/84 12/40-3/84 84/8-3/84 12/8-21/84 12/56-3/84