The shutter speed may not look like a fraction. It may just be a listing of the denominator of the shutter speed fractions. (ex: 250, 125, 60, 30, 15, 8, 4...).
If you are using your iPhone (or other) for your camera this semester, you would probably do yourself a favor by purchasing some sort of "slow shutter" app that would allow you to manipulate the shutter speed on your smartphone.
Options:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgU4znDpuVhDKPk-YQc6MJ_gA9ofUXO24zg2azh7QbkZOHYNc4bVQFa4BdMJ6qpOOFKlhizkG_2r6z2nkfFWGcv7r_oS5kXQmYAShKUQNYL7IcFskqoqdaw0fUpoKNMf8cqY5SOoQ/s320/Screen+Shot+2016-03-15+at+10.56.32+AM.png)
![](https://3.bp.blogspot.com/-QpuG-X7NklA/UjCdg9O_XDI/AAAAAAAAAlU/qbZD2EnYsro/s320/Screen+Shot+2013-09-11+at+9.26.12+AM.png)
There are others available, as well.
Check them out, and give yourself more options for creativity by buying one.
This site (CLICK HERE) might have a shutter app for your phone.
Or this site (CLICK HERE) may have one for you.
For Android: CLICK HERE.