Answer:
Step-by-step explanation:
Ratio
A ratio indicates the relative sizes of two quantities. It is a comparison that tells how many times one number contains another. You can express the ratio in three ways. It can be in a word form (m is to p), fraction form (m/p) and colon form (m:p). Just like a fraction, you can also simplify the ratio. To give the simplest form of the ratio, look for the greatest common factor of the numbers and divide them by it.
Let us now answer the exercises above.
Exercise I:
1. 3 shelves for 120 books
Word Form: 1 is to 40
Fraction Form: 1⁄40
Colon Form: 1:40
2. 12 baskets for 8 shots
GCF = 4
12 ÷ 4 = 3
8 ÷ 4 = 2
Word Form: 3 is to 2
Fraction Form: 3⁄2
Colon Form: 3:2
3. 7 stars to a moon
Word Form: 7 is to 1
Fraction Form: 7⁄1
Colon Form: 7:1
4. 24 flowers to 5 vases
Word Form: 24 is to 5
Fraction Form: 24⁄5
Colon Form: 24:5
5. 50 meters to 85 meters
GCF = 5
50 ÷ 5 = 10
85 ÷ 5 = 17
Word Form: 10 is to 17
Fraction Form: 10⁄17
Colon Form: 10:17
Exercise II:
1. The ratio of girls to the number of pupils in the library
Fraction Form: 16⁄40 or 2⁄5
GCF = 8
16 ÷ 8 = 2
40 ÷ 8 = 5
2. The ratio of the number of parents to the number of teachers
Word Form: 180 is to 30 or 6 is to 1
GCF = 30
180 ÷ 30 = 6
30 ÷ 30 = 1
3. 8 persons to 40 cans of sardines
Fraction Form: 8⁄40 or 1⁄5
GCF = 8
8 ÷ 8 = 1
40 ÷ 8 = 5
4. The ratio of pool's length to its shadow
Colon Form: 20:5 or 4:1
GCF = 5
20 ÷ 5 = 4
5 ÷ 5 = 1
For more examples of writing ratios and giving the simplest form, visit the link:
brainly.ph/question/879564
brainly.ph/question/2443508
brainly.ph/question/1471957
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