Vocabulary
What is a fraction?
not a whole number
how do you write a ratio?
any if it has (to, : , 1/2
2/3 x 3/5 = ?
6/15 = 2/5
4 x 5
20
12/4
3
What is a ratio?
relationship between two numbers.
The ratio of tomatoes to red apples is 2:5 . If there are 20 tomatoes. how many red apples are there?
50 apples.
1/5 x 3/2 = ?
3/10
12 x 5
60
25/5
5
What is a Volume?
amount of space occupied by any three-dimensional shape.
The ratio of teddy bears to unicorn plushies is 1:1. if there are 473 teddy bears. How many unicorn plushies are there?
473 unicorn plushies
20/25 x 2/25 = ?
100/625 = 4/25
24 x 5
120
234/1170
5
What does a quotient mean?
Dividing two numbers.
in a whole class of 30 students there are 10 girls and 20 boys. how many boys for one girl?
2:1 For every one girl there are two boys.
4/7 x 3/7 = ?
12/49
283 x 29
8207
16/64
4
What does product mean?
two or more numbers when multiplied together.
Alice and Olivia share some sweets in a ratio of 7:3. Alice gives 3 sweets to Olivia and now the ratio is 5:3. How many sweets did each have initially?
7x - 3/3x + 3 = 5/3
3(7x - 3) = 5(3x + 3)
21x - 9 = 15x + 15
21x - 15x = 15 + 9
5. 6x = 24
x = 4
100/30 x 2/33 = ?
200/999 = 20/99
254 x 650
165,100
64/128
2