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Fraction-O-Meter allows users to build their skills in:

Evaluating and estimating fractions

Expressing fractions as decimals and percentages

Factoring to reduce fractions to their lowest terms

Visualizing fractions as a portion using the meter

Users can choose to work with fractions which have denominators from two to 99, and can select to have the decimals rounded to two, three or four digits. (Note: Four-digit decimals are tricky on a smaller display.)

A "close enough" allowance lets a user see if the result is off by only small amounts, ranging from 0.0001 to 0.05.