SaiBook.us Fractions

Lesson Example Discussion Quiz: Class Homework

Step-3

Title: Equivalent Fractions

Grade: 5-a Lesson: S1-L7

Explanation: Hello Students, time to practice and review the steps. Let us take next 2-5 minutes to solve the steps for the problems. This is a good exercise to check your understanding of the concepts.Second student to identify and review important steps.Focus on understanding the concepts and application to solving problems step by step.

Discussion: Step1 Step2 Step3 Step4 Step5 Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Find the missing digit in the given equivalent fraction \$5/9\$=\$?/72\$.
2	Clue	Cross-multiplying involves multiplying the numerator of one fraction by the denominator of another fraction.
3	Step	Multiply 5 x 72 and 9 x ? and set them equal to each other	\$5 \times 72\$ = \$9 \times ?\$
4	Step	Multiply 5 x 72,	360 = \$9 \times ?\$
5	Step	To solve for ?, we divide both sides of the equation by 9.	\$360/9\$ = \$(9 \times ?)/9\$ 40 = ?
6	Step	So, the missing number in the equivalent fraction is	40
7	Step	Therefore the equivalent fraction is	\$5/9 = 40/72\$
8	Answer	Option	C
9	Sumup	Can you summarize what you’ve understood in the above steps?
10	Choice.A	This option is incorrect,because when 30 is multiplied by 2 in the denominator, it doesn’t create an equivalent fraction to 72.	\$30\$
11	Choice.B	This option is incorrect, because when 70 is multiplied by 72, it does not create an equivalent fraction.	\$70\$
12	Choice.C	This option is correct, as shown above, when the numerator is 40, the resulting fraction is equivalent to 5/9.	\$40\$
13	Choice.D	This option is incorrect, because 80 does not create an equivalent fraction when multiplied by 72 in the denominator.	\$80\$
14	Sumup	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Find the missing digit in the given equivalent fraction \$5/9\$=\$?/72\$.

Clue

Cross-multiplying involves multiplying the numerator of one fraction by the denominator of another fraction.

Step

Multiply 5 x 72 and 9 x ? and set them equal to each other

\$5 \times 72\$ = \$9 \times ?\$

Step

Multiply 5 x 72,

360 = \$9 \times ?\$

Step

To solve for ?, we divide both sides of the equation by 9.

\$360/9\$ = \$(9 \times ?)/9\$ 40 = ?

Step

So, the missing number in the equivalent fraction is

Step

Therefore the equivalent fraction is

\$5/9 = 40/72\$

Answer

Option

Sumup

Can you summarize what you’ve understood in the above steps?

Choice.A

This option is incorrect,because when 30 is multiplied by 2 in the denominator, it doesn’t create an equivalent fraction to 72.

\$30\$

Choice.B

This option is incorrect, because when 70 is multiplied by 72, it does not create an equivalent fraction.

\$70\$

Choice.C

This option is correct, as shown above, when the numerator is 40, the resulting fraction is equivalent to 5/9.

\$40\$

Choice.D

This option is incorrect, because 80 does not create an equivalent fraction when multiplied by 72 in the denominator.

\$80\$

Sumup

Can you summarize what you’ve understood in the above steps?

Discussion: Step1 Step2 Step3 Step4 Step5