Subtracting Fractions with Unlike Denominators Quiz

What is the first step in subtracting fractions with unlike denominators?

• Multiply the denominators.

• Subtract the denominators.

• Find a common denominator.

• Add the numerators directly.

In the example 7/8 minus 3/4, what is the least common multiple of the denominators?

• 16

• 12

• 8

• 4

How do you adjust the fraction 3/4 to have a denominator of 8?

• Multiply both numerator and denominator by 2.

• Multiply both numerator and denominator by 3.

• Subtract 1 from the denominator.

• Add 4 to the numerator.

What is the result of subtracting 7/8 and 6/8?

• 1/8

• 3/8

• 2/8

• 4/8

In the second method, what is the least common multiple of 9 and 3?

• 12

• 9

• 6

• 3

How do you adjust the fraction 2/3 to have a denominator of 9?

• Multiply both numerator and denominator by 2.

• Add 3 to the numerator.

• Multiply both numerator and denominator by 3.

• Subtract 1 from the denominator.

What is the result of subtracting 7/9 and 6/9?

• 1/9

• 4/9

• 2/9

• 3/9

What is the first step in solving the practice problem 3/5 minus 1/3?

• Find a common denominator.

• Multiply the denominators.

• Add the numerators directly.

• Subtract the denominators.

What is the least common multiple of 5 and 3 in the practice problem?

• 10

• 12

• 15

• 20

What is the result of subtracting 9/15 and 5/15?

• 1/15

• 4/15

• 2/15

• 3/15