What's the difference between a fraction and a ratio?
there the same
A fraction represents a value, and a ratio represents a relation between two values.
If you have 4 pieces of pie and one gets taken then 1/4 has been taken or 3/4 is left as a ratio its 1:3 has been taken or 3:1 is left
If I divide a line of length c into 2 parts a and b in the ratio of 2:1 what is b/a?
There can also be part:part ratios. If there are four flowers in a bouquet of flowers and 3 of them are tulips, the ratio of tulips to other flowers is 3:1, but as a fraction, 3/4 of the flowers are tulips and 1/4 are other flowers.
Well, a/b is 1/2 and b/a is 2 which is why dividing by a fraction is the same thing as multiplying by 1/2 turned upside down..
A fraction is a ratio
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