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Semoga membantu
maaf yaa klo kurang tepat

[tex] {5}^{ - 3} + {10}^{ - 2} = \frac{1}{5 ^{ 3} } + \frac{1}{10 ^{ -2 } } = \frac{1}{125} + \frac{1}{100} = \frac{9}{500} [/tex]