math percents
posted by marko on .
is this right?
to finde decimal and percent for 1 4/5
decimal is 1.8 percent 180%

Right.

i now need to change .003 to a fraction and a percent
i got :
3/100,000 for fraction
3% for percent
is this right? 
No.
0.003 = 3/1000
0.03 = 0.3% 
can you check these:
3/100 fraction
= 0.003 decimal
= .3%
3 5/10 fraction
= 3.5decimal
=350%
1/200 fraction
= 0.005 decimal
= .5%
5 4/100 fraction:
5.04 decimal
504%
34/10000 fraction :
.0034 decimal
0.34 % 
3/100 = three hundredths = 0.03 = 3.0%
The others are correct.