SSAT Upper Level Quantitative › How to express a fraction as a ratio
Express as a ratio.
Ratios take the form of numerator:deminator when in colon form.
In a biology class, students are freshmen,
students are sophomores, and
students are juniors. What is the ratio of sophomores to freshmen in the class?
The ratio of sophomores to freshmen in the class can be expressed by the fraction .
Now, simplify this fraction.
That fraction can also be expressed as .
In a music class of students,
students play the clarinet,
students play the violin,
students play the oboe, and the rest play the piano. What is the ratio of piano players to oboe players in the class?
First, find out how many piano players there are in the class.
Now, we can express the ratio of piano players to oboe players as the following fraction:
The fraction can also be expressed by .
In a garden with plants,
are tulips,
are daisies,
are roses, and the rest are bluebonnets. What is the ratio of bluebonnets to tulips in this garden?
First, find the number of bluebonnets in the garden.
The ratio of bluebonnets to tulips can be expressed as a fraction:
The fraction can also be expressed as the ratio .
Express as a ratio.
In the colon form of a ratio, the fraction becomes numerator:denominator.
A smoothie is made with cups of apple juice,
cup of mango juice,
cups of orange juice, and
cups of blueberry juice. What is the ratio of the amount of orange juice to the amount of blueberry juice?
The ratio of orange juice to blueberry juice can be expressed as a fraction:
That fraction can also be expressed as .
A video store lent out videos during the fall semester.
of the videos were lost, and the rest were returned. What is the ratio of lost videos to returned videos?
First, find the number of videos that were returned.
Now, the ratio of videos lost to videos returned can be expressed as the following fraction:
This fraction can then be expressed as .
Express as a ratio in simplest terms.
First, reduce the fraction.
Now, the simplified fraction can also be expressed as .
A pan of cupcakes had cupcakes on Monday. After one day,
cupcakes were eaten. What is the ratio of cupcakes eaten to cupcakes remaining?
First, find the number of cupcakes that remain.
Now, set up the ratio of cupcakes eaten to cupcakes remaining as a fraction:
That fraction is equivalent to .
In a group of dolphins, there are male dolphins for every
female dolphins. What is the ratio of female dolphins to male dolphins in this group?
The ratio of female to male dolphins can be expressed as the following fraction:
That fraction can be expressed using the colon form of a ratio as .