Subtract 42/7 from 24/84
1st number: 24/84, 2nd number: 6 0/7
24/84 - 42/7 is -40/7.
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,
24/84 = 24 × 1/84 × 1 = 24/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
42/7 = 42 × 12/7 × 12 = 504/84 - Subtract the two like fractions:
24/84 - 504/84 = 24 - 504/84 = -480/84 - After reducing the fraction, the answer is -40/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/84-42/7 24/84-84/7 24/84-42/14 72/84-42/7 24/84-42/21 24/84-42/35 24/84-42/49