perkalian bilangan pecahan
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjAS8oYwn28OFyj2hVn3QXBqVo3MX7hjzmNngLkx2Lm9xVl9Jc-5ve1jGti4gdvWOML9-R53wyRvXsQ7dk_ejx2yjHOFELfb7KDf2ng4ZNqrStyYlAYfQ4pqLNc8QSlFibTFejeHHlN92D/s72-c/perkalian.png
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