Go through the Math in Focus Grade 5 Workbook Answer Key Chapter 3 Practice 1 Adding Unlike Fractions to finish your assignments.

## Math in Focus Grade 5 Chapter 3 Practice 1 Answer Key Adding Unlike Fractions

**Find two equivalent fractions for each fraction.**

Example

Question 1.

\(\frac{3}{4}\) = ___ = ____

Answer:

Question 2.

\(\frac{2}{5}\) = ___ = ____

Answer:

Question 3.

\(\frac{5}{6}\) = ___ = ____

Answer:

Question 4.

\(\frac{1}{7}\) = ___ = ____

Answer:

**Express each fraction in simplest form.**

Question 5.

\(\frac{6}{8}\) = ___

Answer:

Question 6.

\(\frac{8}{20}\) = ___

Answer:

Question 7.

\(\frac{10}{15}\) = ___

Answer:

Question 8.

\(\frac{9}{21}\) = ___

Answer:

**Rewrite each pair of unlike fractions as like fractions.**

Example

Question 9.

\(\frac{1}{4}\) = ___ \(\frac{5}{12}\) = ___

Answer:

Question 10.

\(\frac{1}{10}\) = ___ \(\frac{2}{5}\) = ___

Answer:

Question 11.

\(\frac{5}{9}\) = ___ \(\frac{2}{3}\) = ___

Answer:

Question 12.

\(\frac{3}{8}\) = ___ \(\frac{9}{16}\) = ___

Answer:

**Write equivalent fractions for each fraction. Then find the least common denominator of the fractions.**

Example

\(\frac{1}{2}\) = \(\frac{2}{4}\) = \(\frac{3}{6}\)

\(\frac{2}{3}\) = \(\frac{4}{6}\)

The least common denominator is __6__.

Question 13.

\(\frac{2}{3}\) =

\(\frac{3}{4}\) =

The least common denominator is ____

Answer:

Question 14.

\(\frac{1}{4}\) =

\(\frac{5}{6}\) =

The least common denominator is ____

Answer:

Question 15.

\(\frac{5}{6}\) = ____

\(\frac{3}{8}\) = ____

The least common denominator is ____

Answer:

**Shade and label each model to show the tractions. Then complete the addition sentence.**

Example

Question 16.

\(\frac{1}{5}\), \(\frac{1}{2}\)

Answer:

**Look at the model. Write two addition sentences.**

Question 17.

\(\frac{1}{6}\), \(\frac{1}{4}\)

\(\frac{1}{6}\) + \(\frac{1}{4}\) = ___ + ___

= ____

Answer:

Question 18.

\(\frac{1}{5}\), \(\frac{2}{3}\)

\(\frac{1}{5}\) + \(\frac{2}{3}\) = ____ + ___

= ____

Answer:

Question 19.

Addition sentence 1:

Answer:

Question 20.

Addition sentence 2 (fractions in simplest form):

____ + ____ = ____

Answer:

**Add. Express each sum in simplest form.**

Question 21.

\(\frac{1}{3}\) + \(\frac{1}{9}\) =

Answer:

Question 22.

\(\frac{5}{8}\) + \(\frac{2}{4}\) =

Question 23.

\(\frac{1}{2}\) + \(\frac{6}{7}\) =

Answer:

Question 24.

\(\frac{4}{8}\) + \(\frac{1}{5}\) =

Answer:

**Use benchmarks to estimate each sum.**

Example

Question 25.

\(\frac{2}{3}\) + \(\frac{2}{9}\)

Answer:

Question 26.

\(\frac{7}{9}\) + \(\frac{1}{7}\) + \(\frac{3}{5}\)

Answer: