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 EndFraction.