Question

найди значение и выражения

Answer 1

$1);1frac12cdot1frac13cdot1frac14cdot1frac15cdot1frac16-frac12=frac32cdotfrac43cdotfrac54cdotfrac65cdotfrac76-frac12=frac72-frac12=frac62=3\\2);1frac14cdot1frac15cdot1frac16cdot1frac17cdot1frac18-frac14=frac54cdotfrac65cdotfrac76cdotfrac87cdotfrac98-frac14=frac94-frac14=frac84=2$