Question

90 seconds to 7 minutes in its simplest form

Answer 1

Answer:

simplest form

90sec/7min

first we have to convert 7min into sec

60×7=420

then simplify

90/420= 9/42

Answer 2

The ratio of 90 seconds to 7 minutes is 3: 14

Given:

90 seconds to 7 minutes in its simplest form  

To find:

Write in the simplest ratio

Solution:

While finding the ratio of two quantities, the two quantities must have the same units  

From the data, the two quantities are

90 seconds to 7 minutes  

Now convert both quantities units into the same units

Here  7 minutes = 7 × 60 sec = 420 sec  

[ Since 1 minute = 60 sec ]

The ratio of 90 sec to 7 minutes = 90: 420

Now simplify the ratio as follows

=> 90: 420          

=> 9: 42       [ divided by 10 ]

=> 3: 14       [ divide by 3 ]

Therefore,

The ratio of 90 seconds to 7 minutes is 3: 14

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