Bk5A (Lesson) Unit 11 Problems

Solving Problems Involving Addition or Subtraction of Three Fractions

Math Response

Each mechanical pencil costs $ $$13\frac{1}{2}$$ , each pen costs $ $$9\frac{9}{10}$$ and each highlighter costs $ $$11\frac{3}{5}$$ . To buy one of each, how much should Jenna pay in total? (Expression only)

Type answer here

Correct Answer: 13\frac{1}{2}+9\frac{9}{10}+11\frac{3}{5}

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Math Response

Mum went to the supermarket. She bought $$1\frac{1}{4}$$ kg of steak, $$1\frac{2}{5}$$ kg of pork chop and $$2\frac{1}{10}$$ kg of chicken wings. How many kilograms of steak and chicken wings did Mum buy altogether? (Expression only)

Type answer here

Correct Answer: 1\frac{1}{4}+2\frac{1}{10}

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Math Response

Calculate $$1\frac{1}{4}+2\frac{1}{10}$$

Type answer here

Correct Answer: 3\frac{7}{20}

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Math Response

A grocery store has a total of $$8\frac{5}{8}$$ kg of red beans, green beans and soybeans. Of this weight, $$3\frac{3}{4}$$ kg is red beans and $$2\frac{1}{10}$$ kg is green beans. What is the weight of

soybeans in the grocery store? (Expression only)

Type answer here

Correct Answer: 8\frac{5}{8}-3\frac{3}{4}-2\frac{1}{10}

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Math Response

Calculate $$8\frac{5}{8}-\left(3\frac{3}{4}+2\frac{1}{10}\right)$$

Type answer here

Correct Answer: 2\frac{31}{40}

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Math Response

A convenience store had 10 boxes of soft drinks at first. After selling $$6\frac{3}{8}$$ boxes of soft drinks, the shopkeeper restocks $$4\frac{2}{3}$$ boxes. How many boxes of soft drinks are there in the convenience store now? (Expression only)

Type answer here

Correct Answer: 10-6\frac{3}{8}+4\frac{2}{3}

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Math Response

$$10-6\frac{3}{8}+4\frac{2}{3}$$

Type answer here

Correct Answer: 8\frac{7}{24}

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Reorder

Bella is $$1\frac{2}{5}$$ m tall, and is $$\frac{1}{10}$$ m shorter than Jenna. Jenna is $$\frac{1}{4}$$ m shorter than Haley. Arrange their weights from the lightest to the heaviest.

• Bella

• Jenna

• Haley

1

2

3

• 1
• 2
• 3

Math Response

Bella is $$1\frac{2}{5}$$ m tall, and is $$\frac{1}{10}$$ m shorter than Jenna. Jenna is $$\frac{1}{4}$$ m shorter than Haley. How tall is Haley? (Expression only)

Type answer here

Correct Answer: 1\frac{2}{5}+\frac{1}{10}+\frac{1}{4}

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Multiple Choice

Jerry finished a swimming race in $$7\frac{7}{12}$$ minutes. He spent $$1\frac{3}{5}$$ minutes more than Holman. If Jordan spent $$\frac{3}{4}$$ minute less than Holman. Who won in the race?

• Jerry

• Holman

• Jordan

Math Response

Jerry finished a swimming race in $$7\frac{7}{12}$$ minutes. He spent $$1\frac{3}{5}$$ minutes more than Holman. If Jordan spent $$\frac{3}{4}$$ minute less than Holman, in how many minutes did Jordan finish the swimming race? (Expression only)

Type answer here

Correct Answer: 7\frac{7}{12}-1\frac{3}{5}-\frac{3}{4}

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Math Response

Calculate $$7\frac{7}{12}-1\frac{3}{5}-\frac{3}{4}$$

Type answer here

Correct Answer: 5\frac{7}{30}

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