Subtract 70/21 from 14/84
1st number: 14/84, 2nd number: 3 7/21
14/84 - 70/21 is -19/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
14/84 = 14 × 1/84 × 1 = 14/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
70/21 = 70 × 4/21 × 4 = 280/84 - Subtract the two like fractions:
14/84 - 280/84 = 14 - 280/84 = -266/84 - After reducing the fraction, the answer is -19/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/84-70/21 14/84-70/42 42/84-70/21 14/84-70/63 70/84-70/21 98/84-70/21