单词	common denominator
释义	Common Denominator When two or more fractions have the same denominator (the bottom number). We can add and subtract fractions only when they have a common denominator. To get common denominators we can multiply both top and bottom of a fraction by the same amount. Example: we can't add 1/3 and 1/2 as they are. • But when we multiply 1/3 by 2/2 we get 2/6 • And when we multiply 1/2 by 3/3 we get 3/6 • Now they have a common denominator! • We can now add 2/6 and 3/6 to get 5/6
随便看	borrow (money) borrowing (numbers) boundary bounds box box and whisker plot brackets breadth budget business plan byte calculate calculator calculus calendar cancel capacity capital gain capital loss cardinal number cartesian coordinates cash flow statement categorical data catenary causality

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