Subtract 6/80 from 40/84
40/84 - 6/80 is 337/840.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 84 × 20 = 1680,
40/84 = 40 × 20/84 × 20 = 800/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
6/80 = 6 × 21/80 × 21 = 126/1680 - Subtract the two like fractions:
800/1680 - 126/1680 = 800 - 126/1680 = 674/1680 - After reducing the fraction, the answer is 337/840
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/84-6/80 40/84-12/80 40/84-18/80 40/84-30/80 40/84-42/80