Respuesta :

Answer:

(i) 30 and 15

= 30 : 15

Step-by-step explanation:

First we need to convert the given ratio into fraction,

= 30/15, [divide both the numerator and denominator by 15 since, the h.c.f. of 30 and 15 is 15]

= 2/1

= 2 : 1

boatengalbert291
3 1/3hrs : 45
Changing 3 1/3 from mixed number to improper fraction
3 1/3 = 10/3 hr
To divide the two numbers in the ratio they must hv the same units (ie min )
Hence changing 10/3 hr to min
=10/3 x60 = 200 min

Ratio
= 200/45
Since there is a common factor which is 5 divide through by 5
=40/9
= 40 : 9
Answer = 40:9

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