SOLUTION: my problem is on multiplying and dividing mixed number(word problem). A box of cereal contains 20 ounces. How many one and one fourth ounces serving are in a box.

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Question 655713: my problem is on multiplying and dividing mixed number(word problem).
A box of cereal contains 20 ounces. How many one and one fourth ounces serving are
in a box.

Answer by MathDazed(34) About Me  (Show Source):
You can put this solution on YOUR website!
1 and 1/4 can be written as 5/4....the demoninator times the whole number plus the numerator...then you put your answer over the demoninator
4*1 + 1 = 5 over 4
Hence you divide 20 by 5/4. When you divide any fraction, you flip it then multiply
20 * 4/5
16.....So you have 16