The answer is C
Explanation:
To find their difference, simply subtract the numerators and find the lowest term. To find the lowest term, identify the gcf of the numerator and denominator. In this case, their gcf is 6, so we divided 6/30 with 6, hence it resulted to 1/5.
[tex] \frac{21}{30} - \frac{15}{30} = \frac{6}{30} \: or \: \: \frac{1}{5} [/tex]
please mark me the brainliest hehe
