In a box there are 28 balls, of which are orange.
How many orange balls are there in the box in total?
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In a box there are 28 balls, of which are orange.
How many orange balls are there in the box in total?
To solve this problem, we'll determine the number of orange balls by calculating the fraction of the total number of balls:
Now, let's perform the calculation:
Therefore, the number of orange balls in the box is .
7
Convert the fraction into a percentage:
\( \frac{2}{100}=\text{?} \)
The word 'of' in math means multiplication! When you see 'fraction of a number,' you multiply them together. Adding would give you more than the original amount, which doesn't make sense.
Think of it this way: dividing by 4 splits something into 4 equal parts, and taking means you want just 1 of those parts! Both operations give you the same result.
Sometimes you'll get a decimal or fraction answer, and that's okay! For example, of 29 would be 29 ÷ 4 = 7.25 balls. In real situations, you might need to round to whole numbers.
Ask yourself: Is my answer less than the total? Since we're finding part of 28 balls, our answer should be smaller than 28. Also, multiply your answer by 4 to see if you get back to 28!
Yes! You could think of it as: 'If 28 balls are divided into 4 equal groups, how many are in each group?' This gives you 28 ÷ 4 = 7, the same answer!
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