7th CH 4 Test

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What is the definition of the Least Common Denominator (LCD)?

Back

The Least Common Denominator (LCD) is the smallest multiple that is common to the denominators of two or more fractions.

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How do you find the LCD of two fractions?

Back

To find the LCD of two fractions, list the multiples of each denominator and identify the smallest multiple that appears in both lists.

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What is the process to double a recipe?

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To double a recipe, multiply each ingredient amount by 2.

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What is the formula for adding fractions with different denominators?

Back

To add fractions with different denominators, find the LCD, convert each fraction to an equivalent fraction with the LCD, and then add the numerators.

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How do you convert a decimal to a fraction?

Back

To convert a decimal to a fraction, write the decimal as a fraction with a denominator of 1, then multiply the numerator and denominator by 10 for each digit after the decimal point, and simplify.

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What is the formula for calculating speed?

Back

Speed is calculated using the formula: Speed = Distance / Time.

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How do you simplify a fraction?

Back

To simplify a fraction, divide the numerator and the denominator by their greatest common factor (GCF).

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