Question

2 supra 23×3supra 5-2 duprs 5×3 supra 46​

Answer 1

$\frac{2}{23} \times \frac{3}{5} - \frac{2}{5} \times \frac{3}{46} = \\ \frac{2 \times 3}{23 \times 5} - \frac{2 \times 3}{5 \times 46} = \\ \frac{6}{115} - \frac{6}{230}$

6/230 se simplifica prin 2= 6:2/239:2=3/115

$\frac{6}{115} - \frac{3}{115} = \frac{6 - 3}{115} = \frac{3}{115}$

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