Subtract 84/63 from 3/14
1st number: 3/14, 2nd number: 1 21/63
3/14 - 84/63 is -47/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
3/14 = 3 × 9/14 × 9 = 27/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
84/63 = 84 × 2/63 × 2 = 168/126 - Subtract the two like fractions:
27/126 - 168/126 = 27 - 168/126 = -141/126 - After reducing the fraction, the answer is -47/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/14-84/63 3/28-84/63 9/14-84/63 3/42-84/63 15/14-84/63 3/70-84/63 21/14-84/63 3/98-84/63