RATIO AND PROPORTION
PROBLEMS (3)
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19. 1 the only common divisor. Each number says its name.
19. What ratio has
a) 2 to 3? Two thirds. |
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b) 3 to 4? Three fourths. |
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c) 5 to 6? Five sixths. |
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d) 2 to 9? Two ninths. |
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e) 1 to 5? One fifth. |
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f) 2 to 5? Two fifths. |
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g) 3 to 5? Three fifths. |
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h) 4 to 5? Four fifths. |
10. Common divisor;
Lowest terms. Express each ratio with the
10. lowest terms.
a) 6 to 8? Three fourths. |
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b) 12 to 18? Two thirds. |
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c) 10 to 25? Two fifths. |
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d) 9 to 24? Three eighths. |
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e) 10 to 15? Two thirds. |
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f) 15 to 20? Three fourths. |
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g) 20 to 30? Two thirds. |
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h) 6 to 10? Three fifths. |
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i) 15 to 24? Five eighths. |
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j) 90 to 100? Nine tenths. |
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k) 14 to 35? Two fifths. |
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l) 15 to 40? Three eighths. |
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m) 72 to 81? Eight ninths. |
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n) 16 to 20? Four fifths. |
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o) 21 to 70? Three tenths. |
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p) 40 to 100 Two fifths. |
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q) 80 to 100? Four fifths. |
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r) 1500 to 3500 Three sevenths. |
11. Numbers that end in the same number of 0's. What ratio has
a) 50 to 150? One third. |
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b) 500 to 1500? One third. |
c) 5000 to 6000? Five sixths. |
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d) 70 to 280? One fourth. |
e) 900 to 4500? One fifth. |
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f) 180 to 60? Three times. |
g) 3200 to 800? Four times. |
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h) 1500 to 50? Thirty times. |
i) 1000 to 100? Ten times. |
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j) 400 to 2000? One fifth. |
k) 1200 to 1800 Two thirds. |
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l) 1500 to 2000? Three fourths. |
12. Complete the following with the smallest numbers -- the lowest
12. terms -- which have that ratio.
12.
a) If a is half of b, then a is to b as 1 is to 2.
12.
b) If a is a sixth of b, then a is to b as 1 is to 6.
12.
c) If a is four times b, then a is to b as 4 is to 1.
12.
d) If a is ten times b, then a is to b as 10 is to 1.
12.
e) If a is two thirds of b, then a is to b as 2 is to 3.
12.
f) If a is five eighths of b, then a is to b as 5 is to 8.
12.
g) If a is nine tenths of b, then a is to b as 9 is to 10.
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