### Home > CC4 > Chapter 1 > Lesson 1.1.2 > Problem 1-17

1-17.

Simplify each expression. Homework Help ✎

Find a common denominator for both fractions. Remember that adding a negative is the same as subtracting.

Refer to part (a). Notice that this time you are adding two negatives.

Multiply the numerators then multiply the denominators.

Take the reciprocal of

^{2}/_{7}and multiply. Refer to part (c).