Subtract 84/63 from 5/6
1st number: 5/6, 2nd number: 1 21/63
5/6 - 84/63 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 6 × 21 = 126,
5/6 = 5 × 21/6 × 21 = 105/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
84/63 = 84 × 2/63 × 2 = 168/126 - Subtract the two like fractions:
105/126 - 168/126 = 105 - 168/126 = -63/126 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/6-84/63 5/12-84/63 15/6-84/63 5/18-84/63 25/6-84/63 5/30-84/63 35/6-84/63 5/42-84/63