What is the motto/phrase we use to remember how to divide fractions?
Keep. Switch. Flip.
Turn this mixed number into an improper fraction. 2 3/5
13/5
Simplify 4/24
1/6
Divide the fractions. 1/3 ÷ 2/5
5/6
What is the reciprocal and give an example.
The reciprocal is the inverse or flip of a fraction. For example, 3/4 becomes 4/3
Turn this improper fraction into a mixed number. 30/4
7 2/4 or 7 1/2.
Simplify 9/27
1/3
Divide the fractions. 4/5 ÷ 2
2/5
It rained on 2/5 of all the days last month. On the 1/6 of these rainy days, there were thunderstorms. On what fraction of the days last month were there thunderstorms?
1/6 x 2/5 = 2/30 = 1/15 days
Turn this mixed number into an improper fraction. 12 2/3
38/3.
Write this fraction in simplest form. 28/35
4/5
A chef used one-eighth of a bag of potatoes for a meal. If the potatoes fed 3 people, what fraction of the bag did each person get?
27
At a school, there are 864 students and 80 staff members. 5/8 of the students are boys. How many girls are there in the school?
8/8 - 5/8 = 3/8 --> 3/8 of school are girls.
864 × 3/8 = 324 girls
Predict whether the product will be greater than, less than, or equal to the underlined factor.
2/5 x 4 = a
8/8 x 5/4 = b
b = 5/4
Turn this mixed number into an improper fraction. 4 4/7
32/4.
Use cross-canceling to simplify the equation. Then give the answer in simplest form. 2/5 x 7/10
Simplified Equation: 1/5 x 7/5 = 7/25
A bakery used one-sixth of a bag of chocolate chips to make 8 batches of cookies. How much of the bag did they use for each batch?
1/48
On a snowy day, only 7/12 of the students attend school. Among the students that missed school, about 4/5 students call the school to inform the school office. What was the fraction of all students that called in to inform the school about missing school this day?
12/12 - 7/12 = 5/12 missed school
5/12 x 4/5 = 1/3
Predict whether the product will be greater than, less than, or equal to the underlined factor.
7/8 x 3/4 = a
8/3 x 2 1/2 = b
a < 7/8
b > 5/2
Turn this improper fraction into a mixed number. 81/8
10 1/8.
Use cross-canceling to simplify the equation. Then give the answer in simplest form. 12/8 x 18/16
Simplified Equation: 3/4 x 9/4
Answer: 27/16 = 1 11/16
Mrs. Murphy's class is making pillow cases. Each pillow case uses 3/4 of a yard of fabric. How many pillow cases can they make out of 12 1/2 yards of fabric?
25/2 x 4/3 = 100/6 =16 4/6
They can make 16 pillowcases.
At a school, there are 864 students and 80 staff members. 5/8 of the students are boys. 1/6 of the boys joined the basketball team and 2/9 of the boys joined the soccer team. How many boys are there in the soccer team?
(5/8 x 2/9) x 864 = 120 boys on the soccer team.