Solve for w
w = \frac{1050}{157} = 6\frac{108}{157} \approx 6.687898089
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42=6.28w
Multiply 2 and 3.14 to get 6.28.
6.28w=42
Swap sides so that all variable terms are on the left hand side.
w=\frac{42}{6.28}
Divide both sides by 6.28.
w=\frac{4200}{628}
Expand \frac{42}{6.28} by multiplying both numerator and the denominator by 100.
w=\frac{1050}{157}
Reduce the fraction \frac{4200}{628} to lowest terms by extracting and canceling out 4.
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