Fractions by Whole #s
Modeling Fractions Multiplication
Word Problems
100
What multiplication problem is modeled below?
1/4 x 5
100
4/5 x 2/5 =
8/25
100
1/3 of the 24-fifth grade students ride the school bus home. How many students ride the school bus?
1/3 x 24 = 24/3 = 8 students
200
4/6 x 3
2
200
DOUBLE
The product is 2/15. What was the expression multiplied?
2/3 x 1/5
200
1/3 of the 15 students in TUTS go home before 5pm. How many students stay after 5pm?
10 students
1/3 of 15 = 5
15 - 5 = 10
300
2/5 x 3
= 6/5 or 1 1/5
300
DOUBLE JEOPARDY
What is the area of the striped part of the rectangle? (See slide)
1/20
300
2/6 of the 54-fifth grade students go to TUTS on Friday. How many students do NOT go to TUTS?
2/6 x 54 = 108/6 = 18
54 - 18 = 36 students
400
True or false, the problem below equals 4 1/2?
True... 45/10 = 4 5/10 = 4 1/2
400
What is the missing # in the denominator?
The missing # is 3
400
2/3 of the marching band are brass instruments. Out of that, 1/4 are trumpet players. What fraction of the band are trumpet players?
2/3 x 1/4 = 2/12
500
The models below show a multiplication problem. What is that expression?
1/3 x 4
500
What is the area of the striped region of the rectangle? (See Slide)
1/9 x 1/3
500
2/5 of the Fifth Grade class will be traveling outside of Florida during Winter Break. Out of that group, 1/2 will be going to Georgia. How many students will be traveling to Georgia if there are 55 students in 5th Grade?
11 students
2/5 of 55 = 22
22 ÷ 2 = 11