Issue
Menta will not accept the format of a decimal fraction without a zero preceding the decimal point.
Environment
Menta
Cause
Menta will only accept a fraction that contains a zero before the decimal point. For example, 0.1 is acceptable while .1 is not.
Resolution
Menta will reject any fraction without a leading 0 in front of the decimal for any fraction, alternatively use a division operator.
For example, 1/2 is the same as 0.5, 2/5 is the same as 0.4.