Express each ratio as fraction in it lowest form

a) 18hours to 2days
b) 100cm to 5m
c) 4days to 2weeks
d 25cm to 3m
e) 1 1/4 to 30 minute

a)18hr:2days

=9:1
b)100cm:5m
=20:1
c)4days:2wks
=2:1
d)25cm:3m
=5:3
e)am sory never seen a question like that

18 hr / 48 hr = 9/24 = 3/8

etc

e) 1 1/4 to 30 minute you probably mean
e) 1 1/4 hr to 30 minute
= (60 + 15) min / 30 min = 75/30 = 15/6 = 5/2
although you might mean
e) 1 1/4 days to 30 minute
(24+6) hr / 0.5 hr = 60
or even years or centuries or whatever

a) To convert 18 hours to days, we divide by 24 since there are 24 hours in a day.

18 hours ÷ 24 = 0.75 days

The ratio is 0.75 days to 2 days.

To express this ratio as a fraction, we write:
0.75/2

To express it in its lowest form, we simplify the fraction:
0.75 ÷ 0.25 = 3

So, the ratio in its lowest form is 3/8.

b) To convert 100 cm to meters, we divide by 100 since there are 100 centimeters in a meter.
100 cm ÷ 100 = 1 meter

The ratio is 1 meter to 5 meters.

To express this ratio as a fraction, we write:
1/5

Since this ratio is already in its lowest form, we do not need to simplify it any further.

c) To convert 4 days to weeks, we divide by 7 since there are 7 days in a week.
4 days ÷ 7 = 0.571 weeks (rounded to three decimal places)

The ratio is 0.571 weeks to 2 weeks.

To express this ratio as a fraction, we write:
0.571/2

To express it in its lowest form, we simplify the fraction:
0.571 ÷ 0.143 = 4

So, the ratio in its lowest form is 4/7.

d) To convert 25 cm to meters, we divide by 100 since there are 100 centimeters in a meter.
25 cm ÷ 100 = 0.25 meters

The ratio is 0.25 meters to 3 meters.

To express this ratio as a fraction we write:
0.25/3

To express it in its lowest form, we simplify the fraction:
0.25 ÷ 0.25 = 1
3 ÷ 0.25 = 12

So, the ratio in its lowest form is 1/12.

e) To convert 1 1/4 to minutes, we multiply the whole number by 60 (since there are 60 minutes in an hour) and add it to the numerator of the fraction:
1 × 60 + 1 = 61 minutes

The ratio is 61 minutes to 30 minutes.

To express this ratio as a fraction, we write:
61/30

To express it in its lowest form, we simplify the fraction:
61 ÷ 61 = 1
30 ÷ 30 = 1

So, the ratio in its lowest form is 1/1.

To express each ratio as a fraction in its lowest form, we need to simplify the ratios by dividing both the numerator and denominator by their greatest common divisor (GCD).

a) 18 hours to 2 days:
To convert hours to days, we divide by 24 since there are 24 hours in a day.
So, 18 hours is equal to 18/24 days, which can be further simplified by dividing both numerator and denominator by their GCD. In this case, the GCD is 6.
Therefore, the ratio 18 hours to 2 days is equivalent to 3/4.

b) 100 cm to 5 m:
Since both centimeters (cm) and meters (m) are in the same metric system, we don't need to convert them. We can directly write the ratio as 100/500, which simplifies to 1/5 by dividing both numerator and denominator by their GCD, which is 100.

c) 4 days to 2 weeks:
To convert days to weeks, we divide by 7 since there are 7 days in a week.
So, 4 days is equal to 4/7 weeks. This ratio cannot be simplified since there is no common divisor for 4 and 7.

d) 25 cm to 3 m:
Since both centimeters (cm) and meters (m) are in the same metric system, we don't need to convert them. We can directly write the ratio as 25/300, which simplifies to 1/12 by dividing both numerator and denominator by their GCD, which is 25.

e) 1 1/4 to 30 minutes:
To convert mixed numbers to improper fractions, multiply the whole number by the denominator and add it to the numerator. Then, place the sum over the denominator.
1 1/4 is equal to (1 x 4 + 1)/4 = 5/4.
Therefore, the ratio 1 1/4 to 30 minutes is equivalent to 5/4 to 30.
This ratio cannot be simplified since there is no common divisor for 5 and 30.