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12 cards from this deck
How many times one amount contains another
Convert all quantities to the same units
Parts of 100
Divide by 100
Convert % to decimal, then multiply by the number
(100+increase)(100 + \text{increase})(100+increase)% as decimal
1.1751.1751.175
Multiply by the reciprocal (flip second fraction)
Flip and multiply
Make the common term the same value in both ratios
LCM of the term's values
20:2120:2120:21
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