Subtract 84/70 from 40/75
1st number: 40/75, 2nd number: 1 14/70
40/75 - 84/70 is -2/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 70 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
40/75 = 40 × 14/75 × 14 = 560/1050 - Likewise, for the 2nd fraction, since 70 × 15 = 1050,
84/70 = 84 × 15/70 × 15 = 1260/1050 - Subtract the two like fractions:
560/1050 - 1260/1050 = 560 - 1260/1050 = -700/1050 - After reducing the fraction, the answer is -2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/75-84/70