Shop Mathematics ...: Prepared in the Extension Division of the University of Wisconsin, Τόμος 1McGraw-Hill book Company, Incorporated, 1924 |
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Σελίδα 2
... use of fractions . Another small unit , the one - thousandth of an inch , is used by electricians , and is called the mil . The diameter 2 of wire , for example , is expressed more conveniently 2 SHOP ARITHMETIC Definition of a fraction.
... use of fractions . Another small unit , the one - thousandth of an inch , is used by electricians , and is called the mil . The diameter 2 of wire , for example , is expressed more conveniently 2 SHOP ARITHMETIC Definition of a fraction.
Σελίδα 3
... example , is expressed more conveniently in mils than in thousandths of an inch . 6. Proper Fractions . If the numerator and denominator of a fraction are equal , the value of the fraction is 1 , because there are just as many parts ...
... example , is expressed more conveniently in mils than in thousandths of an inch . 6. Proper Fractions . If the numerator and denominator of a fraction are equal , the value of the fraction is 1 , because there are just as many parts ...
Σελίδα 4
... Examples : 1 X 4 4 = 2 2 X 4 Similarly , 5 5 X 2 10 = = 32 16 16 X 2 3 16 Suppose we want to change of an inch to ... Example : Reduce to its lowest terms . 36 128 36 36 ÷ 2 18 ÷ 2 9 = = = 128 128 ÷ 2 64 ÷ 2 32 There is no number that ...
... Examples : 1 X 4 4 = 2 2 X 4 Similarly , 5 5 X 2 10 = = 32 16 16 X 2 3 16 Suppose we want to change of an inch to ... Example : Reduce to its lowest terms . 36 128 36 36 ÷ 2 18 ÷ 2 9 = = = 128 128 ÷ 2 64 ÷ 2 32 There is no number that ...
Σελίδα 5
... Examples : 12 8 4 + = 8 8 8 47 36 = = 4 1 층 or 11 + 111 = 3112 12 12 12 From these examples we may see that to reduce an improper fraction to a whole or mixed number the simplest way is as follows : Divide the numerator by the ...
... Examples : 12 8 4 + = 8 8 8 47 36 = = 4 1 층 or 11 + 111 = 3112 12 12 12 From these examples we may see that to reduce an improper fraction to a whole or mixed number the simplest way is as follows : Divide the numerator by the ...
Σελίδα 6
... example . Example : 1 Reduce 5 in , to eighths of an inch . - 40 1 + - 41 in . , Answer . 8 8 8 14. Use of Signs . Throughout the preceding paragraphs and in all the following text material , five " signs of operation " are used ...
... example . Example : 1 Reduce 5 in , to eighths of an inch . - 40 1 + - 41 in . , Answer . 8 8 8 14. Use of Signs . Throughout the preceding paragraphs and in all the following text material , five " signs of operation " are used ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
amount Answer Antilog belt block boiler bolt brake horsepower calculated castings Centigrade cents ciphers circle circumference common denominator common fraction cube root cubic cutting speed cylinder decimal places decimal point diameter dimensions dimes distance divide dividend division dollar efficiency emery wheel equal Example Explanation Fahrenheit feet final divisor foot-pounds force arm formula given gives heat hoist horsepower improper fraction inclined plane indicated jackscrew lathe lead screw length lever lifted line shaft load logarithmic scale machine mantissa measure mechanical advantage minute mixed numbers multiply number of teeth operation piece piston pound pressure PROBLEMS pulley pump quotient raised reduced revolutions per minute rope shaft shown in Fig slide rule square inch square root steam engine steel stress stroke subtract surface speed temperature threads per inch trial divisor unit volume weight arm whole number width
Δημοφιλή αποσπάσματα
Σελίδα 129 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30j square yards = 1 square rod (sq.
Σελίδα 8 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes =1 hour (hr.) 24...
Σελίδα 163 - Fig. 49. We will solve this problem partly graphically and partly by calculation. The first step is to find how fast the crank pin D is moving. For one turn of the crank, D travels through a distance equal to the circumference of a circle whose radius is R, that is, a distance of 2'ffTi.
Σελίδα 3 - An Improper Fraction is one whose numerator is equal to, or greater than, the denominator; as, f, f.
Σελίδα 41 - To divide by 10, move the decimal point one place to the left. To divide by 100, move the decimal. point two places to the left, and so on for other powers of 10.
Σελίδα 5 - When the numerator is less than the denominator, the value of the fraction is less than 1. 5th. When the numerator is equal to the denominator, the value of the fraction is equal to 1. 6th. When the numerator is greater than the denominator, the value of the fraction is greater than 1.
Σελίδα 76 - In any proportion, the product of the means is equal to the product of the extremes.
Σελίδα 41 - To multiply by 10, move the decimal point one place to the right, annexing a zero if necessary.
Σελίδα 2 - Definition of a Fraction. — A Fraction is one or more of the equal parts into which anything may be divided.