Social Arithmetic, Book 1

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Page 275 - Both terms of a fraction may be divided by the same number without changing the value of the fraction.
Page 277 - Thus, -r = — r b nib represents the rule that the numerator and denominator of a fraction may be multiplied by the same number without changing its value.
Page 214 - Filene's store in masterpieces are the Woolworth Building in New York City —the tallest building in the world when it was...
Page 268 - The number below the line of a fraction is called the denominator, because it denominates, or names the parts into which the unit is divided.
Page 38 - When a thing is divided into two equal parts, we call each part "one-half" or "I

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