Subtract 7/12 from 5/70
5/70 - 7/12 is -43/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
5/70 = 5 × 6/70 × 6 = 30/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
7/12 = 7 × 35/12 × 35 = 245/420 - Subtract the two like fractions:
30/420 - 245/420 = 30 - 245/420 = -215/420 - After reducing the fraction, the answer is -43/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/70-7/12 5/70-14/12 5/70-7/24 15/70-7/12 5/70-21/12 5/70-7/36 25/70-7/12 5/70-35/12 5/70-7/60 35/70-7/12 5/70-49/12 5/70-7/84