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2^4 × 5^3 × 7^3
----------------- -> bara aia de la fractii
2^3 × 5^4 × 7

,, ^ " in seamna : la puterea ...




Răspuns :

=2⁴⁻³x5³⁻⁴x7³⁻¹=2x5⁻¹x7²=2x49x1/5=98/5=19,6

=(2x1x7²)/(1x5x1)=(2x49)/5=98/5