Subtraction of DecimalsKeep the decimal points in a vertical line.Examples:Multiplication of DecimalsThe number of places to point off from theright in the product is found by adding the numberof places in the multiplicand and the multiplier.Example:Division of DecimalsDivision means to determine how manydivisors are equivalent to the dividend.DIVIDEND + DIVISOR = QUOTIENTor,Make the divisor a whole number by movingthe decimal point to the right of the last figure.Move the decimal point in the dividend asmany digits to the right as it was move in thedivisor.Place the decimal point in the quotient(answer) directly above the new position of thedecimal in the dividend.Example: Divide 510 by 25.51st step,2nd Step, 3rd StepTherefore Helpful Hints When Multiplying orDividing by DecimalsTo multiply by 10, move the decimal point oneplace to the right. To multiply by 100, move thedecimal point two places to the right. In otherwords, move the decimal point to the right to coin-cide with’ the number of zeroes in the multiplierwhen it is stated in the “10s.”Division by powers of 10 require moving thedecimal point to the left by one place for each zerothat appears in the divisor.Changing a Decimal to a Common FractionWrite the denominator in the power of 10 andreduce to lowest terms.Examples: 0.8 would be 8/10 reduced to 4/50.04 would be 4/100 reduced to1/25FRACTIONSA fraction is an expressed PART of a unit.The parts of a fraction are the:NUMERATOR—the first or upper part of afraction that indicated the number of the equalparts of a unit concerned.DENOMINATOR—indicates the number ofparts into which a unit is divided and constitutesthe second or lower part of a fraction.Types of FractionsProper fraction—a fraction whose numeratoris less than the denominator.Examples: 1/2, 6/11, 22/75, 41/111Improper fraction —a fraction whosenumerator is equal to or greater than thedenominator.Examples: 3/3, 15/10, 45/30, 101/9Mixed numbers—a whole number combinedwith a fraction.Examples: 1 1/2, 2 3/5, 55 7/108-6

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