Subtract 12/70 from 84/40
1st number: 2 4/40, 2nd number: 12/70
84/40 - 12/70 is 27/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
84/40 = 84 × 7/40 × 7 = 588/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
12/70 = 12 × 4/70 × 4 = 48/280 - Subtract the two like fractions:
588/280 - 48/280 = 588 - 48/280 = 540/280 - After reducing the fraction, the answer is 27/14
- In mixed form: 113/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40-24/70 84/80-12/70 84/40-36/70 84/40-60/70 84/40-84/70