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#1 2005-01-26 07:23:27
- zee
- Member
- Registered: 2005-01-26
- Posts: 1
Fractions
I have a practice sats test on fractions and im stuck on what is 16% of 40 HELP me please!!!!!
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#2 2005-01-26 08:31:43
- MathsIsFun
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- Registered: 2005-01-21
- Posts: 7,713
Re: Fractions
Well, 16% is really 16/100 ("percent" means "per century" or "per 100"), so:
16/100 * 40 = 16 * 40 / 100 (putting the " / 100 " last)
and: 16 * 40 / 100 = 640 / 100 (16*40=640 of course)
and: 640 / 100 = 6.4
I often find this the easiest way - do the mulitpliying first as if the "%" wasn't there, then finish up by dividing the result by 100 (which is just moving the decimal point)
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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#3 2005-03-15 07:46:46
- Matthew Parker
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Re: Fractions
I have a practice sats test on fractions and im stuck on what is 16% of 40 HELP me please!!!!!
Answer:
What you do is divide 40 by 8 is 5.
Because it is 16, divide 5 by 2 it is 2.5.
There simple if you have any more just ask
#4 2005-03-15 08:23:24
- MathsIsFun
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- Registered: 2005-01-21
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Re: Fractions
And what is that supposed to mean, Matthew?
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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#5 2008-05-26 03:18:30
- atut
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- Registered: 2008-04-23
- Posts: 30
Re: Fractions
The answer is 6.4
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