Subtract 9/25 from 20/84
20/84 - 9/25 is -64/525.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 25 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
20/84 = 20 × 25/84 × 25 = 500/2100 - Likewise, for the 2nd fraction, since 25 × 84 = 2100,
9/25 = 9 × 84/25 × 84 = 756/2100 - Subtract the two like fractions:
500/2100 - 756/2100 = 500 - 756/2100 = -256/2100 - After reducing the fraction, the answer is -64/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/84-9/25 20/84-18/25 20/84-9/50 60/84-9/25 20/84-27/25 20/84-9/75 20/84-45/25 20/84-63/25