Question

find the ratio of each of the following in their simplest form. (a) 2.1m to 90cm. (b) 3m to 25 second

Answer 1

Question (a)

2.1 m : 90 cm

Rewrite all in cm:

210cm : 90 cm

Drop the units:

210 : 90

Divide both sides by 30:

7 : 3 (Simplest form)

Answer: 7 : 3

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Question b:

3 mins : 25 seconds

Rewrite all in seconds:

180 seconds : 25 seconds

Drop the units:

180 : 25

Divide both sides by 5:

36 : 5 (Simplest Form)

Answer: 36 : 5

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