Simplify the expression .%0D%0A(1 point)%0D%0AResponses%0D%0A%0D%0A%0D%0AImage with alt text: three-sevenths%0D%0A%0D%0A%0D%0AImage with alt text: six-fourteenths%0D%0A%0D%0A%0D%0AImage with alt text: 9 over 49

To simplify the expression, we need to find the smallest common factor between 3 and 7 and divide both numbers by it. However, all the given options are already simplified expressions, so there is no need for further simplification.