To make the ratios proportional, we need to find the denominator that would make the fractions equal when simplified.
First, simplify the given fraction 21/3, which equals 7.
So, we have 7/1 = 40/x.
To find the missing value, cross-multiply:
7x = 40*1
7x = 40
Finally, divide both sides by 7 to solve for x:
x = 40/7
Therefore, the denominator that makes the ratios proportional is 7, resulting in a fraction of 40/7.
what denminator for 21/3=40/_ would make these ratios proportional?
1 answer