Question

Pessoal, me ajudem a resolver esta questão. O resultado é 1/5, mas não consigo resolvê-la. Por favor!!!​

Answer 1

$\frac{0,03~.~10^{-30}~+~0,3~.~10^{-31}}{30~.~10^{-32}}\\\\\\\frac{\frac{3}{10^2}~.~10^{-30}~+~\frac{3}{10}~.~10^{-31}}{3~.~10~.~10^{-32}}\\\\\\\frac{3~.~10^{-2}~.~10^{-30}~+~3~.~10^{-1}~.~10^{-31}}{3~.~10~.~10^{-32}}\\\\\\\frac{3~.~10^{-30-2}~+~3~.~10^{-31-1}}{3~.~10^{-32+1}}\\\\\\\frac{3~.~10^{-32}~+~3~.~10^{-32}}{3~.~10^{-31}}\\\\\\\frac{2~.~\left(3~.~10^{-32}\right)}{3~.~10^{-31}}\\\\\\2~.~3^{1-1}~.~10^{-32+31}\\\\\\2~.~1~.~10^{-1}\\\\\\\frac{2}{10}\\\\\\\boxed{\frac{1}{5}}$