Ratio Flashcards

1
Q

Key facts about ratios

A

The order of the numbers have to follow the orders of the words
E.G. 1:4 and 4:1 are not the same

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2
Q

How do you change a ratio into a fraction?

A
  1. keep the first number for the numerator
  2. add both the numbers for the denominator
    E.G. 3:5 = 3/8
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3
Q

How do you simplify a ratio?

A

Find a number the two numbers go into and divide them by it

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4
Q

How do you divide a ratio into an amount?

A
Divide £700 into the ratio 5:3:2
1. add the ratio = 5 + 3 + 2 = 10
2. divide 10 into 700 = 700/10 = 70
3. times the ratio numbers by 70 =
5 x 70 = 350
3 x 70 = 210
2 x 70 = 140

350:210:140

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