Do you need a calculator to work out your shopping bill? Would you like to get some practice in doing fraction arithmetic in your head? This app, "Fraction Brain", is a trainer to help you do fraction arithmetic in your head, which randomly generates sets of 10 questions for each level. There are controls to select specific question sets, move to the next question, and view the current questions and answers and best scores for every level played in the current session.

The levels included are:
• 1 : + => 10 questions about the addition of 2 fractions using numbers between 2 and 10.
• 2 : - => 10 questions about the subtraction of 2 fractions using numbers between 2 and 10.
• 3 : x => 10 questions about the multiplication of 2 fractions using numbers between 2 and 10.
• 4 : / => 10 questions about the division of 2 fractions using numbers between 2 and 10.