Subtract 2/7 from 70/6, Solve 11 4/6

Subtract 2/7 from 70/6

1^st number: 11 4/6, 2^nd number: 2/7

70/6 - 2/7 is 239/21.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 7 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 6 × 7 = 42,
70/6 = 70 × 7/6 × 7 = 490/42
Likewise, for the 2nd fraction, since 7 × 6 = 42,
2/7 = 2 × 6/7 × 6 = 12/42
Subtract the two like fractions:
490/42 - 12/42 = 490 - 12/42 = 478/42
After reducing the fraction, the answer is 239/21
In mixed form: 118/21

MathStep (Works offline)

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