Evaluate
63
Factor
3^{2}\times 7
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75-42\left(\frac{7}{7}-\frac{5}{7}\right)
Convert 1 to fraction \frac{7}{7}.
75-42\times \frac{7-5}{7}
Since \frac{7}{7} and \frac{5}{7} have the same denominator, subtract them by subtracting their numerators.
75-42\times \frac{2}{7}
Subtract 5 from 7 to get 2.
75-\frac{42\times 2}{7}
Express 42\times \frac{2}{7} as a single fraction.
75-\frac{84}{7}
Multiply 42 and 2 to get 84.
75-12
Divide 84 by 7 to get 12.
63
Subtract 12 from 75 to get 63.
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Limits
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