Grade 4 Adding and Subtracting Fractions Practice Test

Correct answer: A

The correct answer is $\frac{3}{5}$.

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

Correct answer: B

The correct answer is $\frac{7}{8}$.

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 sections have like denominators, so add 3 and 4 to get $\frac{7}{8}$.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{7}{8}$.

Correct answer: C

The correct answer is $\frac{4}{10}$.

1. Identify the common denominator: The fractions already have like denominators, so the parts are the same size.
2. Add or subtract the numerators: Subtract the displayed parts: $\frac{7}{10}$ - $\frac{3}{10}$ = $\frac{4}{10}$.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{4}{10}$.

Correct answer: D

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: Subtract 5 twelfths from 9 twelfths to get 4 twelfths.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{4}{12}$.

Correct answer: A

The correct answer is $\frac{3}{6}$.

1. Identify the common denominator: The fractions already have like denominators, so the parts are the same size.
2. Add or subtract the numerators: Add one sixth and two sixths to get three sixths.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{3}{6}$.

Correct answer: B

The correct answer is $\frac{3}{7}$.

1. Identify the common denominator: The fractions already have like denominators, so the parts are the same size.
2. Add or subtract the numerators: Subtract 2 sevenths from 5 sevenths to get 3 sevenths.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{3}{7}$.

Correct answer: C

The correct answer is $\frac{7}{9}$.

1. Identify the common denominator: The fractions already have like denominators, so the parts are the same size.
2. Add or subtract the numerators: Add the numerators 4 and 3 while keeping denominator 9.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{7}{9}$.

Correct answer: D

The correct answer is $\frac{7}{12}$.

1. Identify the common denominator: The fractions already have like denominators, so the parts are the same size.
2. Add or subtract the numerators: Subtract 4 twelfths from 11 twelfths to find 7 twelfths.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{7}{12}$.

Correct answer: A

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: Three tenths plus five tenths equals eight tenths.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{8}{10}$.

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: Subtract 3 elevenths from 8 elevenths to get 5 elevenths.
3. Keep the denominator: The denominator stays the same, so the correct choice is $\frac{5}{11}$.