Solutions by everydaycalculation.com

245 - 684 is -17630.

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

LCM of 45 and 84 is**1260**

Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,

245 = 2 × 2845 × 28 = 561260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,

684 = 6 × 1584 × 15 = 901260 - Subtract the two like fractions:

561260 - 901260 = 56 - 901260 = -341260 - After reducing the fraction, the answer is -17630

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