Subtract 20/84 from 5/75
5/75 - 20/84 is -6/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 75 × 28 = 2100,
5/75 = 5 × 28/75 × 28 = 140/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
20/84 = 20 × 25/84 × 25 = 500/2100 - Subtract the two like fractions:
140/2100 - 500/2100 = 140 - 500/2100 = -360/2100 - After reducing the fraction, the answer is -6/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/75-20/84 5/75-40/84 15/75-20/84 5/75-60/84 25/75-20/84 35/75-20/84