Solutions by everydaycalculation.com

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

72 - 103 is 16.

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

LCM of 2 and 3 is**6**

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

72 = 7 × 32 × 3 = 216 - Likewise, for the 2nd fraction, since 3 × 2 = 6,

103 = 10 × 23 × 2 = 206 - Subtract the two like fractions:

216 - 206 = 21 - 206 = 16

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