What are the uses for fractions?

Answer 1

Measurements (think tools and carpentry)

They also develop in equations and formulae

E.g. Distance = Speed X Time, or D = ST

Therefore S = T / D or T

D

(Meant to be an underscore under the T but it's not available.)

You can often use fractions as a division method, by factors and cancelling. Eg:

288/48 = 144/24 = 72/12 = 6. I simply divided the numerator and denominator by 2 until I gained a division easily carried out mentally.