Solutions by everydaycalculation.com

13 - 36 is -16.

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

LCM of 3 and 6 is**6**

Next, find the equivalent fraction of both fractional numbers with denominator 6 - For the 1st fraction, since 3 × 2 = 6,

13 = 1 × 23 × 2 = 26 - Likewise, for the 2nd fraction, since 6 × 1 = 6,

36 = 3 × 16 × 1 = 36 - Subtract the two like fractions:

26 - 36 = 2 - 36 = -16

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