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Step-3

Title: Determine the value of an expression

Grade: 7-b Lesson: S3-L3

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

Lesson Steps

Steps	Problem	Solution
1	Determine the value of an expression at \$x = 1/3\$ & \$y = 1/2 \$	\$ xy + 1/(xy) \$
2	Now substitute the values \$x = 1/3\$ & \$y = 1/2 \$ in the expression	\$ (1/3)(1/2) + 1/(1/3 * 1/2) \$
3	After simplification	\$ 1/6 + 1/(1/6) \$
4	After cancelation	\$ 1/6 + 6 \$
5	Take LCM as ' \$6\$'	\$ (1 + 36)/6 \$
6	After Addition	\$ 37/6 \$
7	Answer	A : \$ 37/6 \$

Steps

Problem

Solution

Determine the value of an expression at
\$x = 1/3\$ & \$y = 1/2 \$

\$ xy + 1/(xy) \$

Now substitute the values \$x = 1/3\$ & \$y = 1/2 \$ in the expression

\$ (1/3)(1/2) + 1/(1/3 * 1/2) \$

After simplification

\$ 1/6 + 1/(1/6) \$

After cancelation

\$ 1/6 + 6 \$

Take LCM as ' \$6\$'

\$ (1 + 36)/6 \$

After Addition

\$ 37/6 \$

Answer

A : \$ 37/6 \$