Question

151515/161616-141414/151515=

Answer 1

151515/161616-141414/151515=10101/10101

Answer 2

$\frac{151515}{161616}- \frac{141414}{151515} =$
dăm factor comun pe 10101 si vom avea
$\frac{15*10101}{16*10101} - \frac{14*10101}{15*10101} =$
simplificam cu 10101 si vom avea
$\frac{15}{16}- \frac{14}{15} =$
amplificam prima fractie cu 15 si a doua fractie cu 16 si vom avea
$\frac{15*15}{15*16}- \frac{16*14}{16*15} =$
$\frac{225}{240}- \frac{224}{240}= \frac{1}{240}$