Solutions by everydaycalculation.com

68 - 19 is 2336.

- Find the least common denominator or LCM of the two denominators:

LCM of 8 and 9 is**72**

Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,

68 = 6 × 98 × 9 = 5472 - Likewise, for the 2nd fraction, since 9 × 8 = 72,

19 = 1 × 89 × 8 = 872 - Subtract the two like fractions:

5472 - 872 = 54 - 872 = 4672 - After reducing the fraction, the answer is 2336

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