Considera os números

Considera os números \(A = 3 \times {10^7}\); \(B = 5,28 \times {10^4}\) e \(C = 2,01 \times {10^5}\).

Determina \({\frac{{B + C}}{A}}\).

\[\begin{array}{*{20}{l}}{\frac{{B + C}}{A}}& = &{\frac{{5,28 \times {{10}^4} + 2,01 \times {{10}^5}}}{{3 \times {{10}^7}}}}\\{}& = &{\frac{{0,528 \times {{10}^5} + 2,01 \times {{10}^5}}}{{3 \times {{10}^7}}}}\\{}& = &{\frac{{\left( {0,528 + 2,01} \right) \times {{10}^5}}}{{3 \times {{10}^7}}}}\\{}& = &{\frac{{2,538}}{3} \times \frac{{{{10}^5}}}{{{{10}^7}}}}\\{}& = &{0,846 \times {{10}^{ – 2}}}\\{}& = &{8,46 \times {{10}^{ – 3}}}\end{array}\]