Respuesta :

Photon
[tex] \frac{42}{2} = \frac{21*2}{1*2} = \frac{21}{1} [/tex]

Therefore the rate is 42 over 2 as a fraction 42 on top 2 on the bottom unit rate is 21 over 1, 21 on top and 1 on the bottom.

Hope this helps !

Photon