Adding and Subtracting Fraction with Unlike Denominators

(Choose one that is true) When you add or subtract fractions with unlike denominators you..

• Find the greatest common factor to change your denominator

• Change the denominator by picking a random number then divide

• Find the least common multiple to change your denominator

• none of these are true

Tags

CCSS.7.NS.A.1C

What is the first step to simplifying a fraction?

• List your multiples of each fractions

• List your factors of each fraction

• Pick a random number and divide the fraction twice

• None of these are true

Tags

CCSS.6.EE.A.3

CCSS.6.NS.B.4

When you have an improper fraction what do you do to make it a mixed number?

• Divide

• Multiply

• Add

• Subtract

Tags

CCSS.5.NF.B.3

Which one is true

• You only simplify when you add fractions

• You simplify all the time unless the fraction is already simplified

• You only simplify when you subtract fractions

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What must you have to add and subtract fractions?

• Common numerators
• Different numerators
• Different denominators
• Common denominators

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

 $\frac{1}{2}+\frac{1}{4}=$  

•  $\frac{3}{4}$  

•  $\frac{2}{4}$  

•  $\frac{3}{6}$  

•  $\frac{2}{6}$  

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

 $\frac{5}{10}+\frac{8}{5}=$  

•  $\frac{5}{9}$  

•  $\frac{1}{10}$  

•  $2\ \frac{1}{10}$  

•  $2\ \frac{2}{10}$  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

  $\frac{19}{20}-\frac{3}{10}=$  

•  $\frac{15}{20}$  

•  $\frac{22}{20}$  

•  $\frac{13}{20}$  

•  $\frac{16}{10}$  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

 $\frac{3}{4}-\frac{2}{10}=$  

•  $\frac{11}{20}$  

•  $\frac{9}{10}$  

•  $\frac{11}{24}$  

•  $\frac{9}{4}$  

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the difference of 7/8-1/3?

• 6/5

• 8/11

• 6/8

• 13/24

Tags

CCSS.7.NS.A.1C