Solutions by everydaycalculation.com

13 - 310 is 130.

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

LCM of 3 and 10 is**30**

Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 3 × 10 = 30,

13 = 1 × 103 × 10 = 1030 - Likewise, for the 2nd fraction, since 10 × 3 = 30,

310 = 3 × 310 × 3 = 930 - Subtract the two like fractions:

1030 - 930 = 10 - 930 = 130

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