Subtract 24/20 from 6/84
1st number: 6/84, 2nd number: 1 4/20
6/84 - 24/20 is -79/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
6/84 = 6 × 5/84 × 5 = 30/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
24/20 = 24 × 21/20 × 21 = 504/420 - Subtract the two like fractions:
30/420 - 504/420 = 30 - 504/420 = -474/420 - After reducing the fraction, the answer is -79/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/84-24/20 6/84-48/20 6/84-24/40 18/84-24/20 6/84-72/20 6/84-24/60 30/84-24/20 42/84-24/20