Answer 1:
What you do is first, write this as a fraction (43.75 / 100 = 4375 / 10000), then you start simplifying. Since the only prime factors of 10,000 are 2 and 5, try if you can divide the number 4375 by 2, and by 5. If you find a factor, divide the denominator by the same number. Continue, until you can simplify no more.
Answer 2:
4375/10,000 reduces to 875/2,000 which reduces to 175/400 which reduces to 35/80 which reduces to 7/16. In each case the division was by five.
It is simply 4375/1 as an improper fraction
4375/1.
4375/10000 or 7/16
43.75% = 0.4375 = 4375/10000 = 7/16
7/ 16
4375/1000
4375/1000
7/16
4.375 = 4375/1000 or 35/8 in fraction
7/16
0.4375 is a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. Its rational equivalent is 4375/10000 which can be simplified. But simplification will mean that you lose information about the precision of the fraction.
4375/1000 or 35/8= 4.375 * 1000/1000= 4375/1000 or 35/8