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What is 25...
3 years ago
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Lura Gorczany
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4 Answers
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1) A percentage is merely a fraction that has a denominator of 100.
For example, writing 17% as a fraction is 17/100
2) If one takes a fraction OF something then the OF turns into a mulltiplication (X):
For example: 3/4 of 20 is written as 3/4 X 20 = (3 X 20)/4 = (3 X 5 X 4)/4 = 3 X 5=15
Combining (1) and (2) above:
We can therefore write 25% OF 60 as: (25/100) X 60 = 60/4 = 15
Taking 25% off 60 is taking 15 off 60 which is 60 - 15 = 45
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60*(1/4) = 15
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Positive Secondary School Teacher of Mathematics
A percentage is a portion of a whole, usually expressed from 0 - 100%.
In this case we have 25% of £60.
So we are trying to find a portion of £60.
25% is equal for 1/4 as a fraction.
We can divide our £60 by 1/4 to give us £15. So 25% of £60 is £15.
Another way is to find find 50% (1/2) which is £30. Then to find 25% (1/2 of 50%) = £15.
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The % we want ÷ total %
So using this formula we would do:
25 ÷ 100 = 0.25
then we must multiply the answer by the amount we want to take the % off from:
0.25 × 60 = £15
next we subtract the answer from the original amount:
60 - 15 = £45
So 25% of £60 is £15. If we want to take 25% off of £60 then the answer is £45.
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