Adding fractions with different denominator

What do we call fractions that have the same bottom number?

• Mixed fractions

• Like fractions

• Equivalent fractions

• Unlike fractions

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What is necessary to add or subtract fractions with different denominators?

• Finding a common denominator

• Simplifying both fractions

• Multiplying the numerators

• Finding a common numerator

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What method is introduced in the video to find a common denominator?

• Cross multiplication method

• Easiest common denominator method

• Fraction division method

• Least common multiple method

What do you multiply to find the common denominator in the 'easiest common denominator' method?

• The numerators

• The denominators

• The whole fractions

• The equivalent fractions

What is the result of adding 7 over 8 and 3 over 10 using the method described?

• 10 over 18

• 17 over 15

• 11 over 18

• 94 over 80

Tags

CCSS.7.NS.A.1C