Ratio - Ls 1

​Ratio and Fraction

By Rolandi

CHAPTER 3: RATIO

Lesson 1:

Andy has 5 stamps. Bryan has 7 stamps.
The number of stamps they have can be shown using a model.

​The ratio of the number of stamps Andy has to the number of stamps Bryan has is _______

Andy has 5 stamps. Bryan has 7 stamps.
The number of stamps they have can be shown using a model.

​The same ratio can be expressed as FRACTION

So the number of stamps Andy has is ______ of the number of stamps Bryan has.

Multiple Choice

Cindy has $9 and Danny has $14.

What is the ratio of Danny's money to Cindy's money?

Cindy 有 9 美元，Danny 有 14 美元。 Danny 和 Cindy 的钱的比例是多少？

• 9 : 14

• 14 : 9

• 14 / 9

• 9 / 14

Multiple Choice

Cindy has $9 and Danny has $14.

Cindy's money is ____ of Danny's money.

Cindy 有 9 美元，Danny 有 14 美元。Cindy 的钱是 ______ Danny 钱的

• 9 : 14

• 14 : 9

• 14 / 9

• 9 / 14

Cindy has $9 and Danny has $14.

Cindy's money is ___ of their total money altogether.

What is their total money altogether?

Danny's money is ___ of their total money altogether.

In a zoo, the number of snakes, lions and turtles is in the ratio 7 : 1 : 4.

The number of snakes is ___ of the number of lions.

The ratio of the number of turtles to the total number of animals is _____________

Multiple Choice

There are 12 apples, 15 oranges and 18 melons in a store.

What is the ratio of the apples to the oranges to the melons in the store?

Express your answer in its simplest form.

一家商店里有12个苹果、15个橙子和18个西瓜。

这家商店里苹果、橙子和西瓜的比例是多少？ 用最简单的形式表达你的答案

• 3 : 5 : 9

• 4 : 3 : 6

• 3 : 5 : 6

• 4 : 5 : 6

Multiple Choice

There are 12 apples, 15 oranges and 18 melons in a store.

The number of the apples is _____ of the number of oranges.

Express your answer in its simplest form.

一家商店里有12个苹果、15个橙子和18个甜瓜。

苹果的数量是橙子的_____倍。 用最简单的形式表达你的答案。

• 3 / 5

• 1 / 2

• 2 / 3

• 4 / 5

Multiple Choice

There are 12 apples, 15 oranges and 18 melons in a store.

Express the number of oranges as a fraction of the melons in the store.

Write your answer in its simplest form.

一家商店里有12个苹果、15个橙子和18个甜瓜。

请将橙子的数量表示为甜瓜数量的分数。 请用最简形式写出你的答案。

• 5 / 6

• 4 / 3

• 6 / 5

• 3 / 4

Multiple Choice

There are 12 apples, 15 oranges and 18 melons in a store.

Express the number of oranges as a fraction of the total fruits in the store.

Write your answer in its simplest form.

一家商店里有12个苹果、15个橙子和18个甜瓜。

请将橙子的数量表示为商店里水果总数的分数。 请用最简形式写出你的答案。

• 3 / 5

• 1 / 3

• 2 / 3

• 4 / 5

Poll

How do you understand today's lesson about Ratio and Fraction?

你如何理解今天关于比率和分数的课程？

• I really understand and ready for the next!

  我真的明白了，并且做好了下一步的准备！

• I quite understand, but need more practice.

  我完全理解，但需要更多练习。

• I struggle to understand the lesson and need help.

  我很难理解这节课并需要帮助。

Do Work Book p55 - 58.

​Individual Practice: