{{ option.label }} add
menu_book {{ printedBook.name}}
arrow_left {{ state.menu.current.label }}
{{ option.icon }} {{ option.label }} arrow_right
arrow_left {{ state.menu.current.current.label }}
{{ option.icon }} {{ option.label }}
arrow_left {{ state.menu.current.current.current.label }}
{{ option.icon }} {{ option.label }}
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a/b* b=a

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{{ result.subject.displayTitle }}
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{{ 'math-wiki-keyword-three-characters' | message }}

Theory

Multiplication and division are each other's opposites. Thus, when an expression is divided and multiplied by the same non-zero number, the operations cancel each other out and the value doesn't change.
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