Some wrench sets come in metric units and others come in standard units. A chart compares the measurements of a metric set of wrenches with the equivalent measurements in inches.

Metric to Inches Conversion
Metric
wrench size in millimeters
Equivalent size in
inches
4
0.1572
5
0.1965
6
0.2358
7
0.2751
8
0.3144
9
0.3537

If Caleb only has metric wrenches and needs a StartFraction 5 Over 16 EndFraction inch wrench, how could he use the chart to choose the best fit?
Caleb should use the 5 millimeter wrench because that would be closest to StartFraction 5 Over 16 EndFraction inches since they both have 5.
Caleb should divide 5 by 16 to get a decimal of 0.3125. Then, he should try the 7 millimeter and 8 millimeter wrenches because 0.2751 < 0.3125 < 0.3144.
Caleb should divide 16 by 5 to get a decimal of 3.2. Then, he should try the 8 millimeter and 9 millimeter wrenches because 0.3144 < 3.2 < 0.3537.
Caleb should use a 20 millimeter wrench because 4 millimeters Almost-equals StartFraction 1 Over 16 EndFraction so 4 millimeters times 5 = 20 millimeters almost-equals StartFraction 1 Over 16 EndFraction times 5 = StartFraction 5 Over 16