Evaluate
86
Factor
2\times 43
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\frac{\left(21\times 2+1\right)\times 4}{2}
Divide \frac{21\times 2+1}{2} by \frac{1}{4} by multiplying \frac{21\times 2+1}{2} by the reciprocal of \frac{1}{4}.
\frac{\left(42+1\right)\times 4}{2}
Multiply 21 and 2 to get 42.
\frac{43\times 4}{2}
Add 42 and 1 to get 43.
\frac{172}{2}
Multiply 43 and 4 to get 172.
86
Divide 172 by 2 to get 86.
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Limits
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