Make Fraction Word Problems less ambiguous

Reviewers: eater

Reviewed By: eater

Differential Revision: http://phabricator.khanacademy.org/D9457

exercises/fraction_word_problems_1.html

@@ -82,7 +82,7 @@
                 </p>
                 <p class="question">
                     If <var>person( 1 )</var> ate <code>\dfrac{<var>A</var>}{<var>TOTAL</var>}</code> of the <var>pizza( 1 )</var>,
-                    what fraction of the <var>pizza( 1 )</var> was eaten?
+                    what fraction of the <var>pizza( 1 )</var> was eaten in total?
                 </p>
                 <p class="solution" data-simplify="optional" data-type="rational"><var>(A + B) / TOTAL</var></p>
                 <div class="hints">
@@ -150,7 +150,8 @@
                 </p>
                 <p class="question">
                     If <var>person( 1 )</var> ate <code>\dfrac{<var>A</var>}{<var>TOTAL</var>}</code> of the <var>pizza( 1 )</var>,
-                    what fraction of the <var>pizza( 1 )</var> is remaining?
+                    what fraction of the <var>pizza( 1 )</var> remained after <var>person( 1 )</var> and <var>person( 2 )</var>
+                    had eaten?
                 </p>
                 <p class="solution" data-simplify="optional" data-type="rational"><var>LEFT / TOTAL</var></p>
                 <div class="hints">