Subtract 3/70 from 40/12
1st number: 3 4/12, 2nd number: 3/70
40/12 - 3/70 is 691/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
40/12 = 40 × 35/12 × 35 = 1400/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
3/70 = 3 × 6/70 × 6 = 18/420 - Subtract the two like fractions:
1400/420 - 18/420 = 1400 - 18/420 = 1382/420 - After reducing the fraction, the answer is 691/210
- In mixed form: 361/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12-3/70 40/12-6/70 40/24-3/70 40/12-9/70 40/36-3/70 40/12-15/70 40/60-3/70 40/12-21/70 40/84-3/70