48/21
improper just means the numerator is at least as big as the denominator
4/3
48 over 63 in its simplest form = 16 over 21
It is: 48/63 = 16/21
48/126 = 8/21
7 over 16
It is: 7/16
7/8
Expressed as a proper fraction in its simplest form, by dividing the numerator and denominator by 3, 21/48 is equal to 7/16 or seven sixteenths.
Expressed as an improper fraction in its simplest form, by dividing both the numerator and denominator by 8, 48/510 is equal to 6/65, or six sixty-fifths.
40/48 is a proper fraction. Proper fractions can't be improper fractions; it wouldn't be proper.
21/48 = 7/16
48 over 5