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. Author manuscript; available in PMC: 2014 Oct 1.
Published in final edited form as: Dev Psychol. 2012 Dec 17;49(10):1994–2004. doi: 10.1037/a0031200

Table 1.

Percent Correct on Fraction Arithmetic by Problem Type for Low Achieving (LA) and Higher Achieving (HA) Students

Operation Denominators Achievement
Status
LA HA
Addition Equal 63 87
Unequal 12 74
Subtraction Equal 75 91
Unequal 28 77
Multiplication Equal 40 34
Unequal 55 61
Division Equal 12 36
Unequal 6 27