To find<span> the </span>unit rate<span>, divide the numerator and denominator of the </span>given rate<span> by the denominator of the </span>given rate<span>. So in this case, divide the numerator and denominator of 70/5 by 5, to </span>get<span> 14/1, or 14 students per class, which is the </span>unit rate<span>.</span>