By 2 digits if you mean there is a digit on each side of a division symbol you will solve what you have there and then add a decimal point to the answer and then add zeros to bring down. Then you can repeat the long division process and will have an answer.
All you'd do is divide by 4 on both sides,
4/4 = 1
12/4 = 3
Your Answer:
x < 3
Old. new
100%. 45%
x. 42
45x= 4200
x=$93.33
