Subtract 42/36 from 40/6, Solve 6 4/6

Subtract 42/36 from 40/6

1^st number: 6 4/6, 2^nd number: 1 6/36

40/6 - 42/36 is 11/2.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 36 is 36

Next, find the equivalent fraction of both fractional numbers with denominator 36
For the 1st fraction, since 6 × 6 = 36,
40/6 = 40 × 6/6 × 6 = 240/36
Likewise, for the 2nd fraction, since 36 × 1 = 36,
42/36 = 42 × 1/36 × 1 = 42/36
Subtract the two like fractions:
240/36 - 42/36 = 240 - 42/36 = 198/36
After reducing the fraction, the answer is 11/2
In mixed form: 51/2

MathStep (Works offline)

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