Subtract 2/40 from 40/6, Solve 6 4/6

Subtract 2/40 from 40/6

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

40/6 - 2/40 is 397/60.

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,
2/40 = 2 × 3/40 × 3 = 6/120
Subtract the two like fractions:
800/120 - 6/120 = 800 - 6/120 = 794/120
After reducing the fraction, the answer is 397/60
In mixed form: 637/60

MathStep (Works offline)

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