What denontiomer for 21/3 = 49/7 would make these ratios proportional?
To make the ratios proportional, we need to find a common denominator for both fractions. The common denominator for 3 and 7 is 21.
Next, we can rewrite the first fraction as:
21/3 = (7 * 3) / 3 = 7.
Therefore, the equivalent fraction for 21/3 is 7.
To make the ratios proportional, we need the equivalent fraction for 49/7 to be equal to 7. Since 49 รท 7 = 7, we don't need to change the fraction 49/7.
Hence, the equation 21/3 = 49/7 is already proportional.