Subtract 12/14 from 18/70
18/70 - 12/14 is -3/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 14 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
18/70 = 18 × 1/70 × 1 = 18/70 - Likewise, for the 2nd fraction, since 14 × 5 = 70,
12/14 = 12 × 5/14 × 5 = 60/70 - Subtract the two like fractions:
18/70 - 60/70 = 18 - 60/70 = -42/70 - After reducing the fraction, the answer is -3/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70-12/14 18/70-24/14 18/70-12/28 54/70-12/14 18/70-36/14 18/70-12/42 90/70-12/14 18/70-60/14 18/70-12/70 18/70-84/14 18/70-12/98