Question

c²/30 * 20/cm
7a³/10m² * 25m³/14a²

Answer 1

Объяснение:

$\frac{c {}^{2} }{30} \times \frac{20}{cm} = \frac{c {}^{2} \times 20}{30cm} = \frac{2c}{3m}$

$\frac{7a {}^{ 3} }{10m {}^{2} } \times \frac{25m {}^{3} }{14a {}^{2} } =\frac{7a^{3}\times 25m^{3}}{10m^{2}\times 14a^{2}} =\frac{5am}{2\times 2} =\frac{5am}{4}$