The question is hopelessly underspecified.
Whose respiratory system?
What aspect of the respiration system is being compared?
What is it being compared against?
For example, the mass of the respiratory system of all living organisms in the solar system, as a fraction of the mass of the solar system is zero for all intents and purposes.
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Since a unit fraction IS a fraction, it is like a fraction!Since a unit fraction IS a fraction, it is like a fraction!Since a unit fraction IS a fraction, it is like a fraction!Since a unit fraction IS a fraction, it is like a fraction!
different kinds of fraction: *proper fraction *improper fraction *mixed fraction *equal/equivalent fraction
They are both fractions... an equivalent fraction is a fraction that is the same as another fraction. For example: 1/2 and 2/4 they are equivalent. A fraction is just .. a fraction any fraction.. 2/7 7/8 8/9 :)
a fraction is already a fraction i don't mean to be mean but you must be super stupid.
A mix Fraction is when there is a whole number and a fraction together. For example: 2 3/4A mixed fraction is a fraction which has a whole number and a fraction component. For example, 1 and 3/5 would be a mixed fraction.