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6η Δημοτικού

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Ratio review

Learn how to find the ratio between two things given a diagram.

A ratio compares two different quantities.

For example, those two quantities could be monkeys and bananas:

Notice that there are start color #11accd, 4, end color #11accd monkeys and start color #e07d10, 5, end color #e07d10 bananas.

Here are a few different ways we can describe the ratio of monkeys to bananas:

There are start color #11accd, 4, end color #11accd monkeys for every start color #e07d10, 5, end color #e07d10 bananas.
The ratio of monkeys to bananas is start color #11accd, 4, end color #11accd to start color #e07d10, 5, end color #e07d10.
The ratio of monkeys to bananas is start color #11accd, 4, end color #11accd, colon, start color #e07d10, 5, end color #e07d10.

Order matters in ratios. Here are a few different ways to describe the ratio of bananas to monkeys:

There are start color #e07d10, 5, end color #e07d10 bananas for every start color #11accd, 4, end color #11accd monkeys .
The ratio of bananas to monkeys is start color #e07d10, 5, end color #e07d10 to start color #11accd, 4, end color #11accd.
The ratio of bananas to monkeys is start color #e07d10, 5, end color #e07d10, colon, start color #11accd, 4, end color #11accd.

Πρόβλημα 1

Dana loves rocks! She has 6 pieces of granite, 3 pieces of marble, 14 pieces of sandstone, and 1 piece of slate.

What is the ratio of pieces of sandstone to pieces of marble in Dana's collection?

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