Subtract 75/5 from 3/84
1st number: 3/84, 2nd number: 15 0/5
3/84 - 75/5 is -419/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 5 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
3/84 = 3 × 5/84 × 5 = 15/420 - Likewise, for the 2nd fraction, since 5 × 84 = 420,
75/5 = 75 × 84/5 × 84 = 6300/420 - Subtract the two like fractions:
15/420 - 6300/420 = 15 - 6300/420 = -6285/420 - After reducing the fraction, the answer is -419/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/84-75/5 3/84-75/10 9/84-75/5 3/84-75/15 15/84-75/5 3/84-75/25 21/84-75/5 3/84-75/35