Evaluate
\frac{247}{31}\approx 7.967741935
Factor
\frac{13 \cdot 19}{31} = 7\frac{30}{31} = 7.967741935483871
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10-\frac{7\times 9}{31}
Add 1 and 9 to get 10.
10-\frac{63}{31}
Multiply 7 and 9 to get 63.
\frac{310}{31}-\frac{63}{31}
Convert 10 to fraction \frac{310}{31}.
\frac{310-63}{31}
Since \frac{310}{31} and \frac{63}{31} have the same denominator, subtract them by subtracting their numerators.
\frac{247}{31}
Subtract 63 from 310 to get 247.
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