Exercise arithmetic.fractions

Description
simplify fractions

Derivation

(2/3+2/7)/(4/7-1/3)

⇒ algebra.manipulation.fraction-plus-scale

(14/21+2/7)/(4/7-1/3)

⇒ algebra.manipulation.fraction-plus-scale

(14/21+6/21)/(4/7-1/3)

⇒ algebra.manipulation.fraction-plus

20/21/(4/7-1/3)

⇒ algebra.manipulation.division-numerator

20/(21*(4/7-1/3))

⇒ algebra.manipulation.fraction-plus-scale

20/(21*(12/21-1/3))

⇒ algebra.manipulation.fraction-plus-scale

20/(21*(12/21-7/21))

⇒ algebra.manipulation.fraction-plus

20/(21*(5/21))

⇒ algebra.manipulation.fraction-times-cancel-denominator-nominator

20/5

⇒ algebra.manipulation.simpler-fraction

4