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### No 'In App Ads', good for educational use ### Fractional calculation is available for an arbitrary fractional expression. Step by step calculation is easy to understand for students.This app is a special version for the current 'Dr Fraction' or 'Dr Fraction for iPad', which has following features. - A fractional expression with missing number is also available. - An automatic font size adjustability according to the length of expression. (Large font size for short expression and small font size for long expression.) - Other User Interface Improvement for iOS7. (This app is designed for both iPhone and iPad, and only for iOS7.) If you have learned different calculation method at your school, please follow your teacher's advice.