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:
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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