ACT 2020 July(C01) Math Question 3 Explanation - ACT Helper

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2020 July(C01) Math Question 3
Ratios, Proportions, Percentages, Fractions
- LCM, GCF, Prime Numbers
Choice B
$45 = 1 \times 3 \times 3 \times 5$ $50 = 1 \times 2 \times 5 \times 5$ $84 = 1 \times 2 \times 2 \times 3 \times 7$ $T h e g r e a s t e s t c o m m o n f a c t o r = 1$
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