Solutions by everydaycalculation.com

1^{st} number: 1 1/4, 2^{nd} number: 1 2/6

54 - 86 is -112.

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

LCM of 4 and 6 is**12**

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

54 = 5 × 34 × 3 = 1512 - Likewise, for the 2nd fraction, since 6 × 2 = 12,

86 = 8 × 26 × 2 = 1612 - Subtract the two like fractions:

1512 - 1612 = 15 - 1612 = -112

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