Subtract 8/70 from 3/12
3/12 - 8/70 is 19/140.
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,
3/12 = 3 × 35/12 × 35 = 105/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
8/70 = 8 × 6/70 × 6 = 48/420 - Subtract the two like fractions:
105/420 - 48/420 = 105 - 48/420 = 57/420 - After reducing the fraction, the answer is 19/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12-8/70 3/12-16/70 3/24-8/70 9/12-8/70 3/12-24/70 3/36-8/70 15/12-8/70 3/12-40/70 3/60-8/70 21/12-8/70 3/12-56/70 3/84-8/70