Vocabulary Words
What is the number above the division bar in a fraction called?
above
If you are dividing a whole number by a fraction you must first do what to the whole number?
Put a 1 underneath it to make it a fraction.
Mrs.West wants to divide 6 pints of ice-cream into 1/3 pint-servings. How many servings are possible? Explain how you found your answer.
18 servings
What is the reciprocal of 2/3 ?
3/2
What is the number called that is below the division bar in a fraction?
When dividing fractions, what do you do to the first fraction in the problem?
KEEP it the same.
If the diameter of a tree trunk is growing 1/4 inch each year, how many years will it take for the diameter to grow 8 inches?
It would take 32 years to grow 8 inches!
What is the reciprocal of 8?
1/8
What is a reciprocal?
the multiplication inverse of a number obtained by swapping the numerator and denominator of a fraction
When dividing fractions, what do you do to the division sign?
Change it to multiplication.
Rachelle is making pillows. She needs 1/5 yard of fabric for each pillow. If she has 6 yards of fabric, how many pillows can she make?
Rachelle can make 30 pillows.
How many 1/3 s are in 6
18
What is the first fraction called in a division problem?
1/6 ÷ 1/3
dividend
When dividing fractions, what must you do to the second fraction in the problem?
Find its reciprocal!
One half of a red velvet cake was left over. If it is cut equally to share among 4 friends. What fraction of the cake does each person get?
Each person will get 1/8 of the cake.
1/8
Mia says that 5/6 equals 6 ➗ 5. Is she correct, why or why not?
Mia is incorrect because she reversed the 5 and 6 in the division expression 5/6 = 5
divide
6
What is the answer to a division problem called?
quotient
What is the 3-word rule used to remember how to divide fractions?
Keep, Change, Reciprocal
Keep the first fraction
Change division to multiplication
Reciprocal of the second fraction
A group of friends went to the movies. They shared 2 bags of popcorn equally. If each person got 2/3 of a bag of popcorn, how many people were in the group?
3 people shared the popcorn at the movies
4 people want waffles for breakfast. There are 5 waffles left. How can 5 waffles be shared among 4 people? How much does each person get?
Each person will get 1 whole waffle and 1/4 of a waffle.