Subtract 42/7 from 10/84
1st number: 10/84, 2nd number: 6 0/7
10/84 - 42/7 is -247/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
10/84 = 10 × 1/84 × 1 = 10/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
42/7 = 42 × 12/7 × 12 = 504/84 - Subtract the two like fractions:
10/84 - 504/84 = 10 - 504/84 = -494/84 - After reducing the fraction, the answer is -247/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/84-42/7 10/84-84/7 10/84-42/14 30/84-42/7 10/84-42/21 50/84-42/7 10/84-42/35 70/84-42/7 10/84-42/49