Step-3

Title: Substitute the varible value in the expression

Grade: 8-a Lesson: S2-L1

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step Type Explanation Answer

1

Problem

Determine the value of an expression when k = 3, l = 6, m = 9
\$ k/l + l/m + m/k \$

2

Step

Now substitute k,l,m values in expression

\$ \cancel3^1/\cancel6^2 + \cancel6^2/\cancel9^3 + \cancel9^3/\cancel3^1 \$

3

Step

After cancellation we get

\$ 1/2 + 2/3 + 3\$

4

Hint

Taking LCM as 6

5

Step

After simplification

\$ (3 + 4 + 18)/6 \$

6

Step

After adding we get

\$ 25/6\$

7

Answer

C


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