Subtract 6/80 from 40/45
40/45 - 6/80 is 293/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
40/45 = 40 × 16/45 × 16 = 640/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
6/80 = 6 × 9/80 × 9 = 54/720 - Subtract the two like fractions:
640/720 - 54/720 = 640 - 54/720 = 586/720 - After reducing the fraction, the answer is 293/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/45-6/80 40/45-12/80 40/90-6/80 40/45-18/80 40/45-30/80 40/45-42/80