Subtracting Fractions with Regrouping Techniques

What is the first step in solving 5 - 2 and 3/5?

• Subtract the whole numbers first.

• Subtract the fractions first.

• Borrow from the whole number.

• Convert the fractions to a common denominator.

Tags

CCSS.7.NS.A.1C

Why can't you simply subtract 3/5 from 0 in the problem 5 - 2 and 3/5?

• Because the denominators are different.

• Because 3/5 is larger than 0.

• Because 0 is not a fraction.

• Because you need to borrow from the whole number.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

In the example 6 and 1/3 - 3 and 7/9, what is the common denominator?

• 27

• 6

• 9

• 3

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What do you do after finding the common denominator in the problem 6 and 1/3 - 3 and 7/9?

• Subtract the whole numbers.

• Subtract the fractions directly.

• Convert the fractions to improper fractions.

• Borrow from the whole number.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

In the problem 14 and 2/7 - 6 and 4/5, what is the common denominator?

• 5

• 14

• 7

• 35

Tags

CCSS.7.NS.A.1C

What is the next step after converting 14 and 2/7 to a fraction with a denominator of 35?

• Subtract the fractions directly.

• Convert the fractions to improper fractions.

• Subtract the whole numbers.

• Borrow from the whole number.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the result of 14 and 2/7 - 6 and 4/5 after borrowing and converting to a common denominator?

• 8 and 17/35

• 7 and 28/35

• 8 and 28/35

• 7 and 17/35

Tags

CCSS.7.NS.A.1C

What should you do if you get stuck while solving a problem?

• Skip the problem.

• Ask for help.

• Pause and review your work.

• Guess the answer.

Why is it important to rewrite the problem multiple times?

• To ensure accuracy.

• To make it look neat.

• To confuse yourself.

• To practice writing.

Tags

CCSS.RI.6.3

CCSS.RI.7.3

CCSS.RI.8.3

CCSS.RI.8.5

CCSS.RI.9-10.5

What should you do if you need help with the practice problems?

• Skip the problem.

• Join a small group or ask the teacher.

• Ask a friend.

• Try to solve it on your own.