A proper fraction is a fraction in which the numerator is less than the denominator.
In 117, the numerator (11) is greater than the denominator (7). SO, this is not a proper Fraction.
In 37, the numerator (3) is lesser than the denominator (7).Therefore, this is a proper Fraction.
In 99999, the numerator (999) is greater than the denominator (99). SO, this is not considered a proper Fraction.
In 114788, the numerator (114) is lesser than the denominator (788).Therefore, this is a proper fraction
In 14100, the numerator (14) is lesser than the denominator (100). This is also a proper fraction
Hence, 2,4 and 5 are proper fractions.