Subtract 70/63 from 6/84
1st number: 6/84, 2nd number: 1 7/63
6/84 - 70/63 is -131/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
6/84 = 6 × 3/84 × 3 = 18/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
70/63 = 70 × 4/63 × 4 = 280/252 - Subtract the two like fractions:
18/252 - 280/252 = 18 - 280/252 = -262/252 - After reducing the fraction, the answer is -131/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/84-70/63 18/84-70/63 30/84-70/63 42/84-70/63