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| Elements in the Human Body | |
|---|---|
| Element | Percent |
| Magnesium | 0.05 |
| Potassium | 0.35 |
| Sodium | 0.15 |
| Sulfur | 0.25 |
We will rewrite 0.05 % as a decimal. To write a percent as a decimal, we ignore the percent symbol and move the decimal point two places to the left.
We found that the percent of magnesium in the human body written as a decimal is equal to 0.0005.
| Elements in the Human Body | |
|---|---|
| Element | Percent |
| Magnesium | 0.05 |
| Potassium | 0.35 |
| Sodium | 0.15 |
| Sulfur | 0.25 |
We will rewrite each percent as a fraction in simplest form. Let's start with 0.05 %. To write a percent as a fraction, we write the number part as the numerator and 100 as the denominator. 0.05 % = 0.05/100 Let's simplify this fraction.
a/b=a * 100/b * 100
a/b=.a /5./.b /5.
Calculate quotient
Next, let's rewrite 0.35 %. In this fraction, 0.35 is the numerator and 100 is the denominator. 0.35 % = 0.35/100 Let's simplify this fraction.
a/b=a * 100/b * 100
a/b=.a /5./.b /5.
Calculate quotient
Now we will write 0.15 % as a fraction. 0.15 % = 0.15/100 Let's simplify.
a/b=a * 100/b * 100
a/b=.a /5./.b /5.
Calculate quotient
Finally, let's write 0.25 as a fraction. 0.25 % = 0.25/100 Let's expand the fraction by 100 and simplify.
a/b=a * 100/b * 100
a/b=.a /25./.b /25.
Calculate quotient
Let's write our results in the table.
| Elements in the Human Body | ||
|---|---|---|
| Element | Percent | Fraction |
| Magnesium | 0.05 | 1/2000 |
| Potassium | 0.35 | 7/2000 |
| Sodium | 0.15 | 3/2000 |
| Sulfur | 0.25 | 1/400 |
Sulfur makes up 1400 of the human body.
