Add Mixed Numbers with Unlike Denominators

Multiple Choice

What must you do first in order to add or subtract fractions with unlike denominators?

• add the numerators

• add the denominators

• find a common denominator

• find a common numerator

Multiple Choice

What number could be a common denominator for these two fractions?

1/5 and 5/6?

• 30

• 11

• 6

• 5

Multiple Choice

• 2/5

• 5/6

• 4/6

• 1/5

Multiple Choice

Convert the mixed fraction to a improper fraction.

• 30 /8
• 32 /8
• 34 /8
• 28 /8

Multiple Choice

Convert into an improper fraction.

• 28/7

• 29/4

• 29/7

• 7/1

Multiple Choice

Convert into an improper fraction.

• 15/2

• 10/5

• 17/5

• 11/2

Multiple Choice

• 14 17/30

• 13 47/30

• 1/2

• 15 2/3

Multiple Choice

• 9 5/7

• 5 2/3

• 10 1/5

• 11 5/6

Multiple Choice

• 12/17

• 17/20

• 20/17

• 2 1/2

Multiple Choice

Addition:

Find Lowest Common Denominator & solve

1 5/7 + 14 1/2

• 15 1/14

• 15 6/21

• 15 17/21

• 15 17/14

Multiple Choice

Add the fractions. Simplify if needed.

• 1

• $$\frac{3}{6}$$

• $$\frac{1}{2}$$

• 2

Multiple Choice

Add the fractions. Simplify if needed.

• $$\frac{13}{15}$$

• $$1\ \frac{7}{12}$$

• 1

• $$\frac{9}{15}$$

Multiple Choice

Add the mixed numbers vertically. Simplify if needed.

• $$9\ \frac{5}{7}$$

• $$5\ \frac{2}{3}$$

• $$10\ \frac{1}{5}$$

• $$11\ \frac{5}{6}$$

Multiple Choice

Add the mixed numbers vertically. Simplify if needed.

$$3\ \frac{2}{3}+1\ \frac{1}{8}$$  

• $$4\ \frac{3}{24}$$  

• $$4\ \frac{3}{11}$$  

• $$4\ \frac{19}{24}$$  

• $$4\ \frac{3}{8}$$  

Multiple Choice

$$3\ \frac{5}{8}\ +6\ \frac{1}{2}\ =$$  

Answer in simplest form.

• $$9\ \frac{1}{8}$$  

• $$9\ \frac{6}{8}$$  

• $$9\ \frac{9}{8}$$  

• $$10\ \frac{1}{8}$$