Question

simplify: 4-²×7×81/ 2-²×3³×49​

Answer 1

Step-by-step explanation:

$\frac{ {2}^{ - 4} \times 7 \times {3}^{4} }{ {2}^{ - 2} \times {3}^{3} \times {7}^{2} } = \\ {2}^{ - 4} \times {2}^{2} \times 7 \times {7}^{ - 2} \times {3}^{4} \times {3}^{ - 3} \\ {2}^{ - 2} \times {7}^{ - 1} \times {3}^{1} = \frac{3}{2 \times 2 \times 7} = \frac{3}{28}$