Question

5.Express 30 minutes to 2 hours in ratio.
6.Express each as ratio in the simplest form.:
a)15 balloons out of 60 balloons.
b)8 cups out of 36 cups.
7.A pattern has 14 blue triangles to every 18 yellow triangles. What is the ratio of yellow triangles to blue triangles?
8.Noah drew 22 hearts and 76 circles. What is the ratio of circles to all shapes?
9.Fill in the following blanks:
a) 1:3=__:6=3:__.
10.Write it as in ascending order:
a)1:2, 3:5,3:10,3:2,4:5

Answer 1

5) To express 30 minutes to 2 hours in ratio, the following calculation must be performed:

• 30 minutes = 0.5 hour
• 0.5 = 1
• 2 = X
• 4 = X
• 1: 4

6) To express each as ratio in the simplest form, the following calculations must be performed:

a) 15 balloons out of 60 balloons

15:60 (both divisible by 15)

1: 4

b) 8 cups out of 36 cups

8:36 (both divisible by 4)

2: 9

7) Given that a pattern has 14 blue triangles to every 18 yellow triangles, to determine what is the ratio of yellow triangles to blue triangles the following calculation must be performed:

• 14:18
• 7: 9

Therefore, the ratio is 7 yellow triangles for every 9 blue triangles.

8) Given that Noah drew 22 hearts and 76 circles, to determine what is the ratio of circles to all shapes, the following calculation must be performed:

• 22 + 76 = 98
• 98 = 100
• 76 = X
• 76 x 100/98 = X
• 77.55 = X
• 78: 100
• 39:50

Therefore, the ratio of circles to all shapes is 39:50.

9) To fill in the following blanks, the following calculations must be performed:

• 1: 3 = __: 6 = 3: __.
• 1: 3 = 2: 6 = 3: 9

10) To write the fractions as in ascending order, the following calculations must be performed:

• 1: 2 = 0.5
• 3: 5 = 0.6
• 3:10 = 0.3
• 3: 2 = 1.5
• 4: 5 = 0.8

Therefore: 3:10, 1: 2, 3: 5, 4: 5, 3: 2.

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