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Home > CC3 > Chapter 1 > Lesson 1.2.1 > Problem 1-49

1-49.

Simplify the following expressions. Homework Help ✎

  1. Think about a number line. If you start at and then move left , where do you end up?

  1. Find a common denominator.

  1. Think of positive numbers as 'having' and negative numbers as 'owing.' In this case, you have but owe . Will you end up 'having' or 'owing'? How much?

  1. Find a common denominator.

  1. Change the mixed number to a fraction greater than one.

  1. See (e).

  1. Adding a negative number is the same as subtracting a positive number.

  1. Subtracting a negative number is the same as adding a positive number.

  1. See (c).