Сократите: 12×21/35×15

Question

Сократите: 12×21/35×15

Answer 1

12 * 35 *15
_________ = 12 * 5 * 15 =. 4 * 5 * 15
1. * 21 * 1 ------------- ------------ = 300
1* 3* 1 1 * 1 * 1