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Step-4

Title: Simplify the expression

Grade: 7-b Lesson: S5-L7

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

Lesson Steps

Steps	Problem	Solution
1	Simplify	\$ (-5/4) \div (1 7/8) \div (-7/3) \$
2	After simplification	\$ (-5/4) \div (15/8) \div (-7/3) \$
3	By using the formula \$(1/a) \div (1/b) = (1/a) \times b\$	\$ (-\cancel15^1/\cancel4^1) \times \cancel8^2/\cancel15^3 \div (-7/3) \$
4	After cancelation	\$ (-2/3) \div (-7/3) \$
5	After simplification	\$ (-2/\cancel3^1) \times (-\cancel3^1/7) \$
6	After cancelation	\$ 2/7 \$
7	Answer	A = \$ 2/7 \$

Steps

Problem

Solution

Simplify

\$ (-5/4) \div (1 7/8) \div (-7/3) \$

After simplification

\$ (-5/4) \div (15/8) \div (-7/3) \$

By using the formula \$(1/a) \div (1/b) = (1/a) \times b\$

\$ (-\cancel15^1/\cancel4^1) \times \cancel8^2/\cancel15^3 \div (-7/3) \$

After cancelation

\$ (-2/3) \div (-7/3) \$

After simplification

\$ (-2/\cancel3^1) \times (-\cancel3^1/7) \$

After cancelation

\$ 2/7 \$

Answer

A = \$ 2/7 \$