Question

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Answer 1

= 5⁴ × 49 × 8 × 7 / 7⁵ × 2³ × 5

49 = 7² and 8 = 2³

= 5⁴ × 7² × 2³ × 7 / 7⁵ × 2³ × 5

= 5⁴ × 7³ × 2³ / 7⁵ × 2³ × 5

= 5⁴-¹ × 7³-⁵ × 2³-³

= 5³ × 7-² × 1

see the attachment....

Answer 2

$\frac{ {5}^{4} \times 49 \times 8 \times 7 }{ {7}^{5} \times {2}^{3} \times 5} \\ \\\frac{5³×\cancel5×\cancel{7³}×\cancel{2³}}{\cancel{7³}×7²×\cancel{2³}×\cancel5} \\ \\ \frac{5³}{7²} \\ \\ \frac{125}{49}$