The problem deals with fractions comparison, lets do it: 21/30 > 2/3 we begin solving: 21 > (2/3)*30 21 > 2*10 <span>21 > 20 </span>therefore the proposed inequality is true, <span>21/30 > 2/3
You can solve as well getting same denominator for both fractions and comparing directly, in this case we need to get 2/3 to be divided by 30: 2/3 = (10/10)(2/3) = 20/30 So we have: </span><span>21/30 > 2/3 </span>which is equal to: <span>21/30 > 20/30 </span>and we compare directly because both fractions are divided by the same number, and we can see that the inequality is true.