ORDER OF OPERATIONS: Problem 2

Rule 20:
Multiplication and division must be completed before addition and subtraction.

Problem 2: Calculate tex2html_wrap_inline101.

Answer: The answer is tex2html_wrap_inline103.

Solution:
Convert all the numbers to fractions since the expression contains fractions and whole number. Convert division to multiplication. The problem tex2html_wrap_inline101 can be written
tex2html_wrap_inline107 .

The problem contains multiplication addition, and subtraction. The multiplication must be performed first. Use the numbers on either side of the multiplication signs to calculate the result. The problem tex2html_wrap_inline107 can be modified in a series of steps that are listed as follows:

tex2html_wrap_inline107 = tex2html_wrap_inline113 .

Rewrite tex2html_wrap_inline115 with common denominators.

tex2html_wrap_inline117

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Author: Nancy Marcus

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