Solutions by everydaycalculation.com

67 - 68 is 328.

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

LCM of 7 and 8 is**56**

Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,

67 = 6 × 87 × 8 = 4856 - Likewise, for the 2nd fraction, since 8 × 7 = 56,

68 = 6 × 78 × 7 = 4256 - Subtract the two like fractions:

4856 - 4256 = 48 - 4256 = 656 - After reducing the fraction, the answer is 328

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