Example:
6
4
6+4
10
-- + -- = -------- = ---- = 5
2
2
2
2
c. a
c
ad + bc
-- + -- = --------
b
d
bd
Example: 4 1
(4)(2) + (3)(1)
8+3
11
-- + -- = -------------- = ---- = ----
3 2
(3)(2)
6
6
d. a
c
ac
-- X -- = ----
b
d
bd
Example: 2
6 12
--X--= --
3
5 15
e. a
c
a
d
-- . -- = -- X --
b
d
b
c
Example: 2 4
2
5
10
-- -- = -- X -- = ----
3 5
3
4
12
f.
a
-a
a
---= --= --
b
b
-b
Example:
6
-6
6
- -- = -- = -- = -2
3
3 -3
1-7.
ORDER OF OPERATIONS
a. If parentheses or brackets are present, evaluate the expressions within first,
starting with the innermost set of parentheses using the rules that follow.
MD0837
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