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  • 2020 July(C01) Math Question 3

    Ratios, Proportions, Percentages, Fractions

    - LCM, GCF, Prime Numbers

    Choice B
    $$45=1\times3\times3\times5$$ $$50=1\times2\times5\times5$$ $$84=1\times2\times2\times3\times7$$ $$The\ greastest\ common\ factor=1 $$

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