Exam 3: Adding and Subtracting Fractions

The circle graph below shows us how an average consumer spends money. Use this information for Exercises 26 through 28. -Suppose your family spent $56,000 on the items in the graph above. How much might we expect was spent on education?

Solve. -A small airplane useA small airplane used $35 \frac { 3 } { 4 }$ ga gallons on fuel on aa $5 \frac { 1 } { 2 }$ hour trip. How many gallons of fuel were used for each hour?

Solve. -A sidewalk is built seven bricks wide by laying each brick side by side. How many inches wide is the sidewalk if each brick measuressures $4 \frac { 5 } { 8 }$ i inches wide?

Evaluate. - $\left( \frac { 5 } { 7 } \right) ^ { 3 }$

Perform the indicated operation. Simplify your answers. - $\frac { 5 } { 9 } + \frac { 1 } { 14 }$

Find the perimeter of each figure. For Exercise 29, find the area also. -

Solve. Write the answer in simplest form. -The circle graph shows the fraction of books read by grades one through five. What fraction of books was NOT read by the fourth and third grades?

Find the average of the list of numbers. - $\frac { 7 } { 9 } \text { and } \frac { 3 } { 8 }$

Add and simplify. - $\frac { 4 } { 13 } + \frac { 3 } { 8 }$

Solve. Write the answer in simplest form. -Find the perimeter of the scalene triangle, a triangle with all three sides a different length. Recall that the perimeter of a figure is the distance around a figure.

Add and simplify. - 6 2 +

Use the order of operations to simplify the expression. - $\left( 1 - \frac { 4 } { 7 } \right) ^ { 2 }$

Add and simplify. - 2 9 +5

Subtract and simplify. - $\frac { 8 } { 15 } - \frac { 1 } { 20 }$

Add and simplify. - $3 \frac { 3 } { 7 }$ $+ 7 \frac { 2 } { 7 }$

Subtract and simplify. - $\frac { 4 } { 5 } - \frac { 3 } { 20 }$

Perform the indicated operation. Simplify your answers. - $\frac { 9 } { 10 } + \frac { 7 } { 8 }$

Write the fraction as an equivalent fraction with the given denominator. - $\frac { 3 } { 7 } = \frac { } { 2632 }$

Solve. -A stack ofA stack of 1 $1 \frac { 1 } { 4 }$ -inch wide pizza boxes has a height ofnch wide pizza boxes has a height of $33 \frac { 3 } { 4 }$ -inches. How many boxes are in the stack.

Fill in the blank with one of the words or phrases listed below. equivalent least common multiple > mixed number least common denominator < unlike like exponent -A shorthand notation for repeated multiplication of the same factor is a(n)_________ .