Solutions by everydaycalculation.com

23 - 34 is -112.

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

LCM of 3 and 4 is**12**

Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 3 × 4 = 12,

23 = 2 × 43 × 4 = 812 - Likewise, for the 2nd fraction, since 4 × 3 = 12,

34 = 3 × 34 × 3 = 912 - Subtract the two like fractions:

812 - 912 = 8 - 912 = -112

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