WEBVTT

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Here is the problem: 6 over 12 minus 5 over 3.

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Exact arithmetic with fractions (results kept in lowest terms).

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Rewrite both fractions with the least common denominator. The LCD of 2 and 3 is 6.

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Subtract the numerators and keep the denominator.

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Final answer in lowest terms.

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So the answer is negative 7 over 6.

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Fractions are combined over a common denominator for addition and subtraction, multiplied straight across, and divided by multiplying by the reciprocal. The result is reduced by the greatest common factor.

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Decimal check: negative 7 over 6 approximately negative 1.166666667.

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As a mixed number: negative 1 1 over 6.