SAT SUBJECT TEST MATH LEVEL 1
TOPICS IN ARITHMETIC
CHAPTER 3
Fractions, Decimals, and Percents
ARITHMETIC OPERATIONS WITH MIXED NUMBERS
A mixed number is a number such as 
that consists of an integer followed by a fraction. It is an abbreviation for the sum of the integer and the fraction; so, 
.
Tactic B3
|
TACTIC |
To do arithmetic with mixed numbers, just enter them into your calculator as sums written in parentheses. |
EXAMPLE 9: How you evaluate 
depends on your calculator. If you use a scientific calculator with a fraction button, you can enter 
. If you use a graphing calculator, you would probably enter it as (1 + 2 
3)(3 + 1 4). Either way, you should get 
or 
or 
, which you can convert to the fraction .