Question
PSLE
Brandon kept notebooks in boxes J and K. Box J contained four times as many notebooks as box K. In box J, 13 of the notebooks were orange notebooks. In box K, 12 of the notebooks were orange notebooks. What fraction of Brandon's notebooks were orange notebooks?
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PSLE
Brandon kept notebooks in boxes J and K. Box J contained four times as many notebooks as box K. In box J, 13 of the notebooks were orange notebooks. In box K, 12 of the notebooks were orange notebooks. What fraction of Brandon's notebooks were orange notebooks?