When two fractions share the same denominator, the parts are the same size, so they are easy to add or take away. This 3rd grade like denominator fraction story problems worksheet puts that idea into three short word problems. First, Mercy eats part of a packet of candies, and your child works out what fraction of the packet she ate. Next, Rita mixes granulated sugar and icing sugar for her cupcakes. Last, Walters and Alice walk to school, and your child finds how much farther Walters went than his friend. Each story asks for one sum or one difference, never both. The second page is an answer key that shows every step.