Dividing fractions is just about as easy; there's just one extra step. When you divide by a fraction, the first thing you do is flip-n-multiply. That is, you take the second fraction, flip it upside-down (find the reciprocal), and multiply the first fraction by this flipped fraction.1  Simplify. 2  Simplify.ultiplying fractions is easy: you multiply the top numbers and multiply the bottom numbers. For instance: When possible, you reduce. In the example above, however, nothing reduces, because 8 and 45 have no factors in common.
Sodium phosphate tablets are prescribed by the doctor doing the colonoscopy. There are two different brands, depending on which your doctor prescribes -- Visicol, a 40-tablet regimen, and Osmo-Prep, a 32-tablet regimen.
Gatorade / Miralax Prep for Colonoscopy You need to buy the following (no prescriptions are needed): 1) One 64 oz or two 32 oz bottles of Gatorade, Propel, Crystal Lite or other noncarbonated clear liquid drink (no red colors).