Question

How do I find the fraction of a number?

Answer 1

Here are the problems:
1/2 of 16
1/4 of 12
1/4 of 20
2/3 of 9
1/10 of 50
2/3 of 24

Answer 2

Remember that of means times

Answer 3

I'll do the first one.
\[ \frac{1}{2} \text{ of }16= \frac{1}{2}\cdot\frac{16}{1}= \frac{16}{2}= 8 \]

Answer 4

Can you explain?

Answer 5

How would I multiply them?

Answer 6

you multiply fractions by multiplying their tops, and then multiply their bottoms. if one of the numbers is a whole number, make its bottom a 1. See example above for 1/2 * 16

Answer 7

So you just divide the whole number by the denominator?

Answer 8

in these simple problems, that is what happens. But see what happens when you get to 2/3 of 9

Answer 9

2/3 of 9 = 3?

Answer 10

2/3 of 9 is the same as
\[ \frac{2}{3}\cdot \frac{9}{1} \]

Answer 11

multiply tops
multiply bottoms
divide