SaiBook.us Fractions

Lesson Example Discussion Quiz: Class Homework

Step-2

Title: UnLike Fraction Subtraction

Grade: 5-a Lesson: S2-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	Is the subtraction of \$42/4 − 35/6\$ = \$7/3\$?
2	Step	Give fractions are	\$42/4\$, \$35/6\$
3	Step	Least Common Multiple (LCM) between the denominators	LCM of 4, 6 = 12
4	Step	Multiply the numerator and denominator of each fraction by a number so that they have the LCM as their new denominator	\$((42 × 3) - (35 × 2)) / 12\$
5	Step	Subtract the numerators and keep the denominator the same	\$(126 - 70)/12\$ = \$56/12\$
6	Step	After subtracting, the resulting fraction is \$56/12\$
7	Step	Simplify the fraction by dividing it with 2	\$\cancel56^28/\cancel6^3\$ = \$28/3\$
8	Step	No, \$42/4\$ − \$35/6\$ not equal to \$7/3\$
9	Answer	Option	B
10	Sumup	Can you summarize what you’ve understood in the above steps?
11	Choice.A	This option is incorrect because we have proved that \$42/4\$ - \$35/6\$ is not equal to \$7/3\$.	Yes
12	Choice.B	This option is correct because \$7/3\$ is not the correct result of subtracting \$42/4\$ - \$35/6\$	No
13	Choice.C	This option is incorrect because it combines options A and B. Since option A is correct and option B is incorrect	Both A&B
14	Choice.D	This option is incorrect because Option A is correct	None
15	Sumup	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Is the subtraction of \$42/4 − 35/6\$ = \$7/3\$?

Step

Give fractions are

\$42/4\$, \$35/6\$

Step

Least Common Multiple (LCM) between the denominators

LCM of 4, 6 = 12

Step

Multiply the numerator and denominator of each fraction by a number so that they have the LCM as their new denominator

\$((42 × 3) - (35 × 2)) / 12\$

Step

Subtract the numerators and keep the denominator the same

\$(126 - 70)/12\$ = \$56/12\$

Step

After subtracting, the resulting fraction is \$56/12\$

Step

Simplify the fraction by dividing it with 2

\$\cancel56^28/\cancel6^3\$ = \$28/3\$

Step

No, \$42/4\$ − \$35/6\$ not equal to \$7/3\$

Answer

Option

Sumup

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

Choice.A

This option is incorrect because we have proved that \$42/4\$ - \$35/6\$ is not equal to \$7/3\$.

Yes

Choice.B

This option is correct because \$7/3\$ is not the correct result of subtracting \$42/4\$ - \$35/6\$

Choice.C

This option is incorrect because it combines options A and B. Since option A is correct and option B is incorrect

Both A&B

Choice.D

This option is incorrect because Option A is correct

None

Sumup

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

Discussion: Step1 Step2 Step3 Step4 Step5