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Grade 5 Ratios

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    Singapore Math Grade 5 Chapter 8: Ratios
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  • Write the ratio of 3 apples to 9 oranges in simplest form.
    1:3
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  • Write the ratio of 12 pencils to 4 erasers in simplest form.
    4:1
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  • The ratio of boys to girls in a class is 5:7. If there are 35 boys, how many girls are there?
    49 girls
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  • Simplify the ratio 18:24
    3:4
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  • A recipe calls for 2 cups of sugar to 5 cups of flour. Write the ratio of sugar to flour.
    2:5
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  • Which ratio is greater: 7:3 or 14:6?
    They are equivalent (7:3 = 14:6).
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  • The ratio of cars to bikes is 8:12. Simplify this ratio and compare it to 2:3.
    8:12 simplifies to 2:3; they are equivalent.
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  • Are the ratios 10:15 and 14:21 equivalent?
    Yes, they are equivalent (both simplify to 2:3).
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  • In a zoo, the ratio of lions to tigers is 4:6. Simplify this ratio and determine how many tigers there are for every 8 lions.
    Simplifies to 2:3; there are 12 tigers for every 8 lions.
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  • Two groups of students are in a ratio of 9:12 and 3:4. Are these ratios equivalent?
    Yes, they are equivalent.
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  • A classroom has 16 boys and 12 girls. What is the ratio of boys to the total number of students?
    16:28 or 4:7
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  • For every 5 marbles Alex has, Bella has 8 marbles. What is the ratio of Alex's marbles to Bella's marbles?
    5:8
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  • If a bag of trail mix contains 9 almonds and 6 cashews, what is the ratio of almonds to cashews?
    9:6 or 3:2
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  • A basketball game ends with 80 points scored by Team A and 60 points by Team B. Write the ratio of points scored by Team A to Team B in simplest form.
    4:3
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  • There are 30 chocolates and 45 candies in a box. What is the ratio of chocolates to candies?
    30:45 or 2:3
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  • In a garden, there are 25 red roses and 50 white roses. What is the ratio of red roses to white roses?
    25:50 or 1:2
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