3.1 Ratio

    Cards (33)

    • What does a ratio compare?
      Two or more quantities
    • What are the two main forms of writing ratios?
      Colon and fraction
    • What is the colon form of a ratio used to compare?
      Quantities
    • The greatest common factor of 12 and 18 is 6.
    • When comparing ratios, the larger the number, the greater the proportion.
    • How do you scale ratios to equivalent ratios?
      Multiply or divide
    • What does a ratio compare?
      Two or more quantities
    • How is a ratio written in colon form?
      Using a colon
    • What is used to simplify a ratio to its lowest terms?
      GCF
    • What is the first step to compare ratios?
      Ensure same units
    • Give an example of a real-life application of ratios in cooking.
      Ingredients ratio
    • The fraction form of the ratio 5:3 is 5/3
    • Ratios can be expressed in two main formats: colon form and fraction form.
    • What is the greatest common factor (GCF) used for when simplifying ratios?
      Dividing
    • To compare ratios, they must be expressed in the same units.

      True
    • The ratio 2:3 scaled by 2 becomes 4:6.

      True
    • Scaling a ratio by the same factor changes its proportional relationship.
      False
    • A ratio of 5:3 means there are 5 apples for every 3 oranges.
      True
    • The fraction form of a ratio represents the proportional relationship between quantities.
      True
    • The GCF of 12 and 18 is 6.

      True
    • The ratio 7:10 is greater than 3:5.

      True
    • An image with an aspect ratio of 16:9 is called widescreen.

      True
    • If you have 5 apples and 3 oranges, the ratio of apples to oranges is 5:3.
      True
    • The colon form of the ratio with 5 apples and 3 oranges is 5:3.

      True
    • The fraction form of a ratio represents the ratio as a fraction.

      True
    • Steps to simplify the ratio 12:18 to its lowest terms.
      1️⃣ Find the greatest common factor (GCF) of 12 and 18.
      2️⃣ GCF is 6.
      3️⃣ Divide both parts of the ratio by the GCF.
      4️⃣ Simplified ratio is 2:3.
    • How do you scale a ratio to an equivalent ratio?
      Multiply or divide
    • The ratio 10:15 simplified by dividing by 5 becomes 2:3
    • The ratio of 5 apples to 3 oranges is written as 5:3
    • The ratio 4:7 in fraction form is written as 4/7
    • The ratio 12:18 simplified to its lowest terms is 2:3
    • The ratio 3:5 converted to a fraction with a common denominator of 10 is 6/10
    • A recipe often uses a sugar-to-flour ratio of 2:1