SOLUTION: write the percent as a fraction. simplify if possible 19.68% 20. 35% 21. 79% please tell me what u do so i can understand

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: write the percent as a fraction. simplify if possible 19.68% 20. 35% 21. 79% please tell me what u do so i can understand       Log On


   

Question 175121This question is from textbook
: write the percent as a fraction. simplify if possible
19.68% 20. 35% 21. 79%



please tell me what u do so i can understand
This question is from textbook

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
write the percent as a fraction. simplify if possible
:
per cent means part of a 100, start out by putting it over 100
;
19. 68%2F100
Both numerator and denominator are even, reduce by dividing both by 2:
68%2F100 = 34%2F50
Still even, divide by 2 again
68%2F100 = 34%2F50 = 17%2F25 simplified as much as you can now

20. 35%2F100
Both numerator and denominator can be divided by 5
35%2F100 = 7%2F20;
:
21. 79%2F100 cannot be simplified, 79 is a prime number