In a class, the number of girls as a fraction of boys is 5/4.
Write down the number of boys as a fraction of the number of girls.
Thanks.
To find the number of boys as a fraction of the number of girls, we can take the reciprocal of the given fraction.
The reciprocal of 5/4 is 4/5.
Therefore, the number of boys as a fraction of the number of girls is 4/5.
To write down the number of boys as a fraction of the number of girls, we need to set up a ratio using the given information.
Let's assume there are x boys in the class. The number of girls is given as 5/4 times the number of boys.
So, the number of girls can be calculated as (5/4) * x.
To express the number of boys as a fraction of the number of girls, we divide the number of boys (x) by the number of girls [(5/4) * x].
Therefore, the fraction of boys to girls can be written as:
x / [(5/4) * x]
Simplifying the fraction, we can cancel out the x's:
1 / (5/4)
Reciprocal of a fraction is obtained by flipping it:
1 * (4/5) = 4/5
So, the number of boys as a fraction of the number of girls is 4/5.
g = (5/4) b
4 g = 5 b
b = (4/5) g