Subtracting Mixed Numbers: Step-by-Step Guide

Why does the instructor prefer converting mixed numbers to improper fractions for subtraction?

• It is easier to understand.

• It is the only method available.

• It guarantees consistency across all problems.

• It is the fastest method.

What is the first step in converting 3 and 3/4 to an improper fraction?

• Multiply the whole number by the denominator.

• Add the numerator and the denominator.

• Divide the whole number by the numerator.

• Subtract the numerator from the denominator.

What is the improper fraction form of 3 and 3/4?

• 3/4

• 15/4

• 12/4

• 7/4

How do you convert 1 and 7/8 to an improper fraction?

• Multiply the whole number by the numerator.

• Add the whole number to the denominator.

• Multiply the whole number by the denominator and add the numerator.

• Subtract the numerator from the whole number.

What is the improper fraction form of 1 and 7/8?

• 15/8

• 8/8

• 7/8

• 1/8

Why is it necessary to have a common denominator when subtracting fractions?

• To make the subtraction easier.

• To simplify the fractions.

• To ensure the fractions are equivalent.

• To avoid errors in the calculation.

What is the common denominator used in the subtraction of 15/4 and 15/8?

• 4

• 8

• 12

• 16

What is the result of subtracting 15/8 from 30/8?

• 30/8

• 15/4

• 15/8

• 30/4

How do you convert the improper fraction 15/8 back to a mixed number?

• By adding the numerator and the denominator.

• By dividing the numerator by the denominator.

• By subtracting the numerator from the denominator.

• By multiplying the numerator by the denominator.

What is the final mixed number form of 15/8?

• 1 and 1/8

• 1 and 7/8

• 2 and 7/8

• 2 and 1/8