Cross Simplifying Fractions Explained

Cross Simplifying Fractions Explained

Assessment

Interactive Video

Mathematics

6th - 10th Grade

Practice Problem

Hard

CCSS
5.NF.B.6, 1.OA.A.1, 4.NF.B.4A

+3

Standards-aligned

Created by

Jackson Turner

FREE Resource

Standards-aligned

CCSS.5.NF.B.6
,
CCSS.1.OA.A.1
,
CCSS.4.NF.B.4A
CCSS.6.EE.A.1
,
CCSS.7.NS.A.1C
,
CCSS.4.NF.B.4B
,
This video tutorial covers the concept of cross simplifying fractions to make multiplication easier. It begins with an introduction to the method, explaining how it helps simplify fractions early in the process. The tutorial provides a detailed step-by-step guide on how to identify common factors and perform cross simplification. Several examples are given, ranging from basic to advanced, allowing students to practice and understand the technique thoroughly. The video emphasizes the importance of simplifying fractions before multiplying to handle smaller numbers and avoid complex calculations.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main advantage of cross simplifying when multiplying fractions?

It saves time by simplifying smaller numbers early.

It makes the problem more complex.

It makes the numbers larger.

It eliminates the need for multiplication.

Tags

CCSS.5.NF.B.6

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When cross simplifying, what should you look for between the numerator and denominator?

A common multiple to multiply both by.

A common factor to divide both by.

The smallest number possible.

The largest number possible.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the first example, what common factor is used to simplify 2 and 8?

8

1

2

4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After simplifying 2 and 8, what are the new values of the numerator and denominator?

1 and 4

2 and 4

1 and 8

2 and 8

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the second example, what common factor is used to simplify 5 and 15?

15

5

1

3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you do if the problem becomes complicated and hard to see?

Skip the problem.

Guess the answer.

Rewrite a clean version of the problem.

Give up and move on.

Tags

CCSS.1.OA.A.1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the simplified result of multiplying 1/3 by 1/2?

1/3

1/2

1/4

1/6

Tags

CCSS.4.NF.B.4A

CCSS.4.NF.B.4B

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