Subtract 84/10 from 8/20
1st number: 8/20, 2nd number: 8 4/10
8/20 - 84/10 is -8/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
8/20 = 8 × 1/20 × 1 = 8/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
84/10 = 84 × 2/10 × 2 = 168/20 - Subtract the two like fractions:
8/20 - 168/20 = 8 - 168/20 = -160/20 - After reducing the fraction, the answer is -8/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/20-84/10 8/40-84/10 8/20-84/20 24/20-84/10 8/60-84/10 8/20-84/30 40/20-84/10 8/20-84/50 56/20-84/10 8/20-84/70