How should you group the following expression to make it easiest to add? 18 − 9 4/9 + 79 − 8
To make it easiest to add, we should group together terms that have similar properties or operations.
In this case, we can group the whole numbers together and the fractions together.
The expression can be grouped as follows:
(18 + 79) - (9 + 8) + 4/9
By grouping the terms in this way, it becomes easier to add the whole numbers separately and then deal with the fraction separately.
To group the expression to make it easiest to add, follow the order of operations (PEMDAS/BODMAS) which stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right).
The given expression is: 18 − 9 4/9 + 79 − 8
1. Start by grouping any addition or subtraction within parentheses if there are any. In this case, there are no parentheses.
2. Next, perform any division or multiplication from left to right. Here, we have a fraction 4/9.
18 - (9 * 4/9) + 79 - 8
Now simplify the division:
18 - (4/1) + 79 - 8
18 - 4 + 79 - 8
3. Moving on to addition and subtraction from left to right:
18 - 4 = 14
14 + 79 = 93
93 - 8 = 85
So, the expression simplifies to 85.