<![CDATA[The research objectives are (1) describing the mistakes made by students in simplifying fractions of algebraic forms and (2) describing the scaffolding given to overcome student errors. The subjects in this study were UM Lab High School students in the XI IPS class who made mistakes in completing the test. The research subjects studied were 2 students categorized in the low ability category. This type of research is descriptive qualitative. Data obtained through tests and interviews. The results showed that (1) the mistakes made by students in simplifying the algebraic fractions consisted of errors in denominator equations, errors in algebraic operations, errors in algebraic factoring and errors in simplified algebraic fractions and (2) scaffolding given based on errors in point one is explaining, reviewing and restructuring and developing conceptual thinking.]]>
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