Subtract 60/81 from 28/15, Solve 1 13/15

Subtract 60/81 from 28/15

1^st number: 1 13/15, 2^nd number: 60/81

28/15 - 60/81 is 152/135.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 81 is 405

Next, find the equivalent fraction of both fractional numbers with denominator 405
For the 1st fraction, since 15 × 27 = 405,
28/15 = 28 × 27/15 × 27 = 756/405
Likewise, for the 2nd fraction, since 81 × 5 = 405,
60/81 = 60 × 5/81 × 5 = 300/405
Subtract the two like fractions:
756/405 - 300/405 = 756 - 300/405 = 456/405
After reducing the fraction, the answer is 152/135
In mixed form: 117/135

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