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13 cards from this deck
Tools to compare quantities or amounts
Colon (:)
Sum of all parts in the ratio
35\frac{3}{5}53 and 25\frac{2}{5}52
Multiply or divide both parts by same number
First number is 1 (e.g., 1:1.8)
Smallest possible whole numbers
Whole numbers only, no common factors except 1
Find HCF of all parts, divide each by it
Find total ratio parts (add all numbers)
Calculate value of one part (total ÷ parts)
Multiply each ratio part by value of one part
Calculate quantities, write ratio, simplify
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