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Home > MC1 > Chapter 9 > Lesson 9.2.5 > Problem 9-112

9-112.

For parts (a) through (d), try rounding the fractions mentally to the nearest quarter, half, or whole number.
Then, simplify the expression mentally as well.
Don't forget to explain your reasoning!

To add and subtract fractions for parts (a) and (b), refer to the Math Notes box below.

Remember, to multiply fractions, you can multiply the top numbers (numerators) together and the bottom numbers (denominators) together.
Don't forget to make an estimate first!

More than one? Less than one? Why?
After you estimate, go ahead and check your thinking by calculating the exact answer.

Did you remember to explain your estimate?