Subtract 28/7 from 84/70
1st number: 1 14/70, 2nd number: 4 0/7
84/70 - 28/7 is -14/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
84/70 = 84 × 1/70 × 1 = 84/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
28/7 = 28 × 10/7 × 10 = 280/70 - Subtract the two like fractions:
84/70 - 280/70 = 84 - 280/70 = -196/70 - After reducing the fraction, the answer is -14/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70-56/7 84/70-28/14 84/70-84/7 84/70-28/21 84/70-28/35 84/70-28/49