Exercise arithmetic.fractions

Description
simplify fractions

Derivation

18/(4/5-1/2)

⇒ algebra.manipulation.fraction-plus-scale

18/(8/10-1/2)

⇒ algebra.manipulation.fraction-plus-scale

18/(8/10-5/10)

⇒ algebra.manipulation.fraction-plus

18/(3/10)

⇒ algebra.manipulation.division-denominator

18*10/3

⇒ arithmetic.operation.integer.times

180/3

⇒ algebra.manipulation.simpler-fraction

60