Subtract 4/70 from 9/12
9/12 - 4/70 is 97/140.
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,
9/12 = 9 × 35/12 × 35 = 315/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
4/70 = 4 × 6/70 × 6 = 24/420 - Subtract the two like fractions:
315/420 - 24/420 = 315 - 24/420 = 291/420 - After reducing the fraction, the answer is 97/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/12-4/70 9/12-8/70 9/24-4/70 27/12-4/70 9/12-12/70 9/36-4/70 45/12-4/70 9/12-20/70 9/60-4/70 63/12-4/70 9/12-28/70 9/84-4/70