SaiBook.us Fractions

Lesson Example Discussion Quiz: Class Homework

Step-4

Title: Unlike fraction Addition

Grade: 5-a Lesson: S2-L3

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 \$21/4\$ + \$25/6\$ = \$113/12\$?
2	Step	Given fractions are	\$21/4\$, \$25/6\$
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	\$(21 × 3) + (25 × 2) /12\$
5	Step	Add the numerators and keep the denominator the same	\$(63 + 50)/12\$ = \$113/12\$
6	Step	After adding, the resulting fraction is \$113/12\$
7	Step	Yes, \$113/12\$ equals to \$21/4\$ + \$25/6\$
8	Answer	Option	A
9	Sumup	Can you summarize what you’ve understood in the above steps?
10	Choice.A	This option is correct because \$113/12\$ is the accurate result of adding \$21/4\$ and \$25/6\$.	Yes
11	Choice.B	This option is incorrect because we have proved that \$113/12\$ is equal to \$21/4\$ + \$25/6\$	No
12	Choice.C	This option is incorrect because option A is correct, while option B is incorrect	Both A&B
13	Choice.D	This option is incorrect because we have shown that \$21/4\$+\$25/6\$ simplifies to \$113/12\$ but option B is incorrect	None
14	Sumup	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Is \$21/4\$ + \$25/6\$ = \$113/12\$?

Step

Given fractions are

\$21/4\$, \$25/6\$

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

\$(21 × 3) + (25 × 2) /12\$

Step

Add the numerators and keep the denominator the same

\$(63 + 50)/12\$ = \$113/12\$

Step

After adding, the resulting fraction is \$113/12\$

Step

Yes, \$113/12\$ equals to \$21/4\$ + \$25/6\$

Answer

Option

Sumup

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

Choice.A

This option is correct because \$113/12\$ is the accurate result of adding \$21/4\$ and \$25/6\$.

Yes

Choice.B

This option is incorrect because we have proved that \$113/12\$ is equal to \$21/4\$ + \$25/6\$

Choice.C

This option is incorrect because option A is correct, while option B is incorrect

Both A&B

Choice.D

This option is incorrect because we have shown that \$21/4\$+\$25/6\$ simplifies to \$113/12\$ but option B is incorrect

None

Sumup

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

Discussion: Step1 Step2 Step3 Step4 Step5