Subtract 84/40 from 8/14
1st number: 8/14, 2nd number: 2 4/40
8/14 - 84/40 is -107/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
8/14 = 8 × 20/14 × 20 = 160/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
84/40 = 84 × 7/40 × 7 = 588/280 - Subtract the two like fractions:
160/280 - 588/280 = 160 - 588/280 = -428/280 - After reducing the fraction, the answer is -107/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/14-84/40 8/28-84/40 8/14-84/80 24/14-84/40 8/42-84/40 40/14-84/40 8/70-84/40 56/14-84/40 8/98-84/40