Grade 4 Adding and Subtracting Fractions Practice Test

Correct answer: A

The correct answer is $\frac{3}{8}$.

1. Identify the common denominator: The fractions already have like denominators, so the parts are the same size.
2. Add or subtract the numerators: The missing numerator is 3 because 4 + 3 = 7.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{3}{8}$.

Correct answer: B

The correct answer is $\frac{5}{9}$.

1. Identify the common denominator: The fractions already have like denominators, so the parts are the same size.
2. Add or subtract the numerators: The missing numerator is 5 because 2 + 5 = 7.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{5}{9}$.

Correct answer: C

The correct answer is $\frac{4}{12}$.

1. Identify the common denominator: The fractions already have like denominators, so the parts are the same size.
2. Add or subtract the numerators: The missing numerator is 4 because 10 - 4 = 6.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{4}{12}$.

Correct answer: D

The correct answer is $\frac{8}{10}$.

1. Identify the common denominator: The fractions already have like denominators, so the parts are the same size.
2. Add or subtract the numerators: The starting numerator must be 8 because 8 - 3 = 5.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{8}{10}$.

Correct answer: A

The correct answer is $\frac{5}{7}$.

1. Identify the common denominator: The fractions already have like denominators, so the parts are the same size.
2. Add or subtract the numerators: One plus the missing numerator must equal 6, so the missing part is five sevenths.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{5}{7}$.

Correct answer: B

The correct answer is $\frac{5}{11}$.

1. Identify the common denominator: The fractions already have like denominators, so the parts are the same size.
2. Add or subtract the numerators: The missing numerator is 5 because 5 + 4 = 9.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{5}{11}$.

Correct answer: C

The correct answer is $\frac{7}{13}$.

1. Identify the common denominator: The fractions already have like denominators, so the parts are the same size.
2. Add or subtract the numerators: Twelve minus five is seven, so the missing fraction is seven thirteenths.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{7}{13}$.

Correct answer: D

The correct answer is $\frac{6}{15}$.

1. Identify the common denominator: The fractions already have like denominators, so the parts are the same size.
2. Add or subtract the numerators: The missing numerator is 6 because 14 - 6 = 8.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{6}{15}$.

Correct answer: A

The correct answer is $\frac{4}{6}$.

1. Identify the common denominator: The fractions already have like denominators, so the parts are the same size.
2. Add or subtract the numerators: The missing numerator is 4 because 4 + 1 = 5.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{4}{6}$.

Correct answer: B

The correct answer is $\frac{7}{16}$.

1. Identify the common denominator: The fractions already have like denominators, so the parts are the same size.
2. Add or subtract the numerators: The missing numerator is 7 because 9 - 7 = 2.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{7}{16}$.