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## Read a tape measure

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**Measuring tools**• Tape measure • Ruler • Yard stick • Folding ruler • Measuring wheel • Scale ruler**QUESTIONS**• Who wants to maximize their proficiency? • Which tool do you think is a primary measuring tool in the Automotive field? • Today you are going to learn how to use a ruler to make proper measurements in whole and fractional units.**FRACTIONS OF AN INCH**HALF INCH INCREMENTS http://www.rickyspears.com/rulergame/**FRACTIONS OF AN INCH**One-quarter inch measures**FRACTIONS OF AN INCH**One-eighth of an inch**FRACTIONS OF AN INCH**Two-sixteenths of an inch or One-eighth of an inch**FRACTIONS OF AN INCH**Three-sixteenths of an inch**FRACTIONS OF AN INCH**Four-sixteenths of an inch or Two-eighths of an inch or One-fourth of an inch**FRACTIONS OF AN INCH**Five-sixteenths of an inch**FRACTIONS OF AN INCH**Six-sixteenths of an inch or Three –eights of an inch**FRACTIONS OF AN INCH**Seven-sixteenths of an inch**FRACTIONS OF AN INCH**Eight-sixteenths of an inch or Four-eighths of an inch or Two-fourths of an inch or One-half of an inch**FRACTIONS OF AN INCH**Nine-sixteenths of an inch**FRACTIONS OF AN INCH**Ten-sixteenths of an inch or Five-eighths of an inch**FRACTIONS OF AN INCH**Eleventh-sixteenths of an inch**FRACTIONS OF AN INCH**Twelve-sixteenths of an inch or Six-eighths of an inch or Three-fourths of an inch**FRACTIONS OF AN INCH**Thirteen-sixteenths of an inch**FRACTIONS OF AN INCH**Fourteen-sixteenths of an inch or Seven-eighths of an inch**FRACTIONS OF AN INCH**Fifteen-sixteenths of an inch**FRACTIONS OF AN INCH**Sixteen-sixteenths of an inch or One inch**FRACTION RULES**RULES 1. To add fractions you must have a common denominator 2. Reduce fractions**COMMON DENOMINATOR**How do you get a common denominator? 8 can be the common denominator when the fractions are in fourths or eighths. 16can be the common denominator for all rulers marked in 16ths. Use 32as the common denominator when the ruler is marked in 32nds.**COMMON DENOMINATOR**Multiply top and bottom by the same value to change the denominator correctly.**ADDING MEASURES**• Get the common denominator • Rewrite the fractions**ADDING MEASURES**• Get the common denominator • Rewrite the fractions • Add the numerators • Carry the denominator forward**ADDING MEASURES**• Get the common denominator • Rewrite the fractions • Add the numerators • Carry the denominator forward • Reduce the answer**ADDING MEASURESwith WHOLE NUMBERS**• Add the whole numbers (like always) • Get the common denominator • Rewrite the fractions • Add the numerators • Carry the denominator forward • Reduce the answer**REMEMBERCOMMON DENOMINATORADDING & SUBTRACTING**How do you get a common denominator? 8 can be the common denominator when the fractions are in fourths or eighths. 16can be the common denominator for all rulers marked in 16ths. Use 32as the common denominator when the ruler is marked in 32nds.**COMMON DENOMINATOR**Multiply top and bottom by the same value to change the denominator correctly.**SUBTRACTING MEASURES**• Get the common denominator • Rewrite the fractions**SUBTRACTING MEASURES**• Get the common denominator • Rewrite the fractions • Subtract the numerators • Carry the denominator forward**SUBTRACTING MEASURES**• Get the common denominator • Rewrite the fractions • Subtract the numerators • Carry the denominator forward • Reduce the answer**SUBTRACTING MEASURESwith WHOLE NUMBERS**• Subtract the whole numbers (like always) • Get the common denominator • Rewrite the fractions • Subtract the numerators • Carry the denominator forward • Reduce, if necessary**MULTIPLYING MEASURES**• One-half of 1 inch means or of 1 inch “of is another way to say times”**MULTIPLYING MEASURES**Two times one-half is adding one-half two times. 2 X = 1 + =1