Question

What number needs to be added to 5 and 3 so that the ratio of the first number to the second

Answer 1

Answer:

3

Step-by-step explanation:

Choose a variable to represent the number to be added to 5 and 3.

$\frac{5+x}{3+x}=\frac{4}{3}$

"Cross-multiply."

$3(5+x)=4(3+x)\\\\15+3x=12+4x\\\\15=12+x\\\\3=x$

Check:  The ratio of 5+3 to 3 + 3 is 8:6, equal to the ratio 4:3.