Adding and Subtracting Fractions — Quiz Answers

What is the best estimate of the sum of the fractions? 31 fourths plus 17 thirds plus 8 over 18

Alexia ran three laps around her neighborhood. Each lap is 1 and 3 eighths miles. Which is the best estimate of the number of miles that Alexia ran?

What is the sum of the fractions? Use the number line and equivalent fractions to help find the answer. negative 1 and 1 fourth plus 1 half Expand Image

Cindy and Giovanni plan to make spaghetti sauce. Cindy needs 4 and 3 fourths pounds of tomatoes for her recipe. Giovanni needs 5 and 3 fourths pounds of tomatoes for his recipe. If they make both recipes, how many pounds of tomatoes do they need?

What is the best estimate for the value of the expression? open paren 34 eighths minus 16 thirds close paren minus 14 ninths

What is the sum of the fractions? Use the number line to help find the answer. 3 fifths plus open paren negative 7 fifths close paren Expand Image

Liam had a container of oatmeal that contained 5 and 1 half cups of oatmeal. Liam ate 4 ninths cup of oatmeal every morning before school for a week. Which is the best estimate of the number of cups of oatmeal that Liam had left in the container at the end of the five-day week?

Chen is baking muffins and banana bread for a brunch buffet. He needs 3 and 1 fifth cups of flour to make the muffins and 3 and 2 thirds cups of flour to make the banana bread. Which is the best estimate of the number of cups of flour that Chen needs to bake both recipes?

What is the difference of the fractions? Use the number line and equivalent fractions to help find the answer. negative 2 and 1 half minus open paren negative 1 and 3 fourths close paren Expand Image

Patel squeezed oranges so that his family could have fresh-squeezed juice for breakfast. He squeezed 13 over 15 cups from the first orange, 1 fifth cups from the second orange, 9 over 20 cups from the third orange, 5 over 11 cups from the fourth orange, and 7 over 15 cups from the fifth orange. Patel estimates that he needs 3 cups of orange juice for his family. About how much more orange juice does he need to reach his estimate?

Carlos biked 139 eighths miles on Saturday and 135 sevenths miles on Sunday. On which day did he ride further and by how much?

A submarine hovers at 66 and 2 thirds yards below sea level. If it ascends 24 and 1 eighth yards and then descends 78 and 3 fourths yards, what is the submarine’s new position, in yards, with respect to sea level?

A science experiment calls for mixing 3 and 2 thirds cups of distilled water with 1 and 3 fourths cups of vinegar and 2 thirds cups of liquid detergent. How much liquid in all, in cups, is needed?

Eliza’s backpack weighs 18 and 7 eighths pounds with her math book in it. Without her math book, her backpack weighs 14 and 7 ninths pounds. How much does Eliza’s math book weigh?

There is (1)/(4) of a liter of water in a beaker to prepare for an experiment. More water is added. Now there is (9)/(10) of a liter of water. Exactly how much water is added to the beaker? Enter your answer in the box.

A hike starts at an elevation of 13 and 4 fifths feet below sea level and ends at an elevation that is 1 comma 542 feet higher. How high is the hiker, in feet, above sea level at the end of the hike?

What is the sum of the fractions? Use the number line to help find the answer. 3 fifths plus open paren negative 7 fifths close paren Expand Image

Pamela walks (4)/(9) of a mile from her house to the library, (3)/(10) of a mile from the library to the pool, and then 1(1)/(6) miles to her friend’s house. Use estimation to determine the total distance that Pamela walks. Move the correct answer to each box. Not all answers will be used.

Shelly has a beaker that contains 5 and 2 thirds fluid ounces of water. She pours out 3 and 1 third fluid ounces of water. Which expression can be used to find the number of fluid ounces of water that remain in the beaker?

In which step did Noa first make an error?