Flashcards
Chapter 2 & 3 Key Terms – Fractions and Decimal
Cards in this deck (35)
- 1Proper FractionA fraction whose value is less than 1; the numerator is smaller than the denominator.
- 2Improper FractionA fraction whose value is equal to or greater than 1; the numerator is equal to or greater than the denominator.
- 3Mixed NumberThe sum of a whole number greater than zero and a proper fraction.
- 4Converting Improper FractionsDivide the numerator by the denominator. If there is a remainder, convert it to a mixed number.
- 5Converting Mixed NumbersMultiply the denominator by the whole number, add the numerator, and place the result over the original denominator.
- 6Reducing FractionsDivide both numerator and denominator by the largest whole number that divides them exactly.
- 7Greatest Common Divisor (GCD)The largest whole number that divides both numerator and denominator exactly.
- 8Divisibility TestsMethods to check if a number is divisible by another (example: divisible by 2 if it ends in 0, 2, 4, 6, 8).
- 9Raising FractionsThe process of converting fractions to higher equivalent denominators by multiplying numerator and denominator by the same factor.
- 10Least Common Denominator (LCD)The smallest nonzero whole number into which all denominators will divide evenly.
- 11Prime NumbersNumbers greater than 1 divisible only by 1 and themselves.
- 12Adding Like FractionsAdd numerators and keep the same denominator.E
- 13Adding Unlike FractionsFind the LCD, convert fractions to equivalent denominators, then add numerators.
- 14Adding Mixed NumbersAdd the fractions first and then the whole numbers; reduce if necessary.
- 15Subtracting Like FractionsSubtract the numerators and keep the same denominator.
- 16Subtracting Unlike FractionsFind the LCD, convert to equivalent fractions, then subtract.
- 17Subtracting Mixed NumbersIf borrowing is not needed, subtract normally. If borrowing is needed, convert part of the whole number into a fraction before subtracting.
- 18Multiplying FractionsMultiply numerators and denominators; reduce to lowest terms.
- 19Multiplying Mixed NumbersConvert to improper fractions, multiply, and simplify.
- 20Dividing FractionsInvert the second fraction (reciprocal) and multiply.
- 21Dividing Mixed NumbersConvert to improper fractions, invert the divisor, and multiply.
- 22Decimal Place ValueEach digit to the right of the decimal point represents tenths, hundredths, thousandths, etc.
- 23Rounding DecimalsThe process of approximating a decimal number to the desired place value (e.g., tenths, hundredths, thousandths)
- 24Decimal FractionA fraction with a denominator that is a power of 10 (10, 100, 1000, etc.), which can easily be written as a decimal.
- 25Converting Fractions to DecimalsDivide the numerator by the denominator to obtain the decimal equivalent.
- 26Converting Mixed Numbers to DecimalsChange the fractional part of a mixed number into a decimal and add it to the whole number.
- 27Converting Decimals to FractionsWrite the decimal digits as the numerator and use the corresponding power of 10 as the denominator. Simplify if possible.
- 28Converting Percents to DecimalsDivide the percent value by 100 and remove the percent sign (%).
- 29Converting Percents to FractionsWrite the percent as a fraction with denominator 100, then reduce to lowest terms.
- 30Adding and Subtracting DecimalsAlign decimal points vertically, then add or subtract as with whole numbers.
- 31Multiplying DecimalsMultiply as with whole numbers. Then, count the total number of decimal places in both factors and place the decimal point in the product accordingly.
- 32Dividing DecimalsMove the decimal point in the divisor to make it a whole number, then move the decimal in the dividend the same number of places. Divide as with whole numbers.
- 33Dividing by Powers of 10Move the decimal point in the dividend to the left as many places as there are zeros in the power of 10.
- 34Multiplying by Powers of 10Move the decimal point in the number to the right as many places as there are zeros in the power of 10
- 35Estimating with DecimalsApproximate decimal numbers to a convenient place value in order to quickly estimate sums, differences, products, or quotients.
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- Description
- Flashcards with the key terms and definitions from Chapters 2 and 3 – Fractions and Decimals of the book Practical Business Math Procedures, 14th Edition (Slater & Wittry). Includes types of fractions, conversion procedures, operations with fractions and decimals, divisibility tests, and the use of the Least Common Denominator (LCD).
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- Edilyadiel Gonzalez
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