<p>From above:<br>
"The problem is, there are chemists' rules and normal people's rules!<br>
A chemist sees 1:4 as 1 part in a total of 4 whereas non chemists see 1:4 as a ratio of 1 to 4 to make a total of 5.<br>
The only un-ambiguous way is to use 1+4."</p>
<p>I cannot find an example where a chemist sees a total of 4 when presented with 1:4. I only find that it is a total of 5 parts. Everything I find (thank you Google) shows that 1:4 is the same as 1+4. <br>
Here's an example of a chemistry view that they are the same:<br>
https://www.shodor.org/unchem/math/r_p/</p>
<p>Can someone provide an example of 1:4 meaning total of 4 parts from a chemist's point of view? </p>
