Solutions by everydaycalculation.com

1^{st} number: 3 9/24, 2^{nd} number: 5 5/9

8124 - 509 is -15772.

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

LCM of 24 and 9 is**72**

Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,

8124 = 81 × 324 × 3 = 24372 - Likewise, for the 2nd fraction, since 9 × 8 = 72,

509 = 50 × 89 × 8 = 40072 - Subtract the two like fractions:

24372 - 40072 = 243 - 40072 = -15772

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