Subtract 8/40 from 40/6, Solve 6 4/6

Subtract 8/40 from 40/6

1^st number: 6 4/6, 2^nd number: 8/40

40/6 - 8/40 is 97/15.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 6 × 20 = 120,
40/6 = 40 × 20/6 × 20 = 800/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
8/40 = 8 × 3/40 × 3 = 24/120
Subtract the two like fractions:
800/120 - 24/120 = 800 - 24/120 = 776/120
After reducing the fraction, the answer is 97/15
In mixed form: 67/15

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad