Subtract 40/84 from 5/10
5/10 - 40/84 is 1/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
5/10 = 5 × 42/10 × 42 = 210/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
40/84 = 40 × 5/84 × 5 = 200/420 - Subtract the two like fractions:
210/420 - 200/420 = 210 - 200/420 = 10/420 - After reducing the fraction, the answer is 1/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 5/10-80/84 5/20-40/84 15/10-40/84 5/30-40/84 25/10-40/84 5/50-40/84 35/10-40/84 5/70-40/84