Solutions by everydaycalculation.com

1^{st} number: 1 1/2, 2^{nd} number: 1 8/10

32 - 1810 is -310.

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

LCM of 2 and 10 is**10**

Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,

32 = 3 × 52 × 5 = 1510 - Likewise, for the 2nd fraction, since 10 × 1 = 10,

1810 = 18 × 110 × 1 = 1810 - Subtract the two like fractions:

1510 - 1810 = 15 - 1810 = -310

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