А) 12 * 1/6 * 1 1/2 *3 3/4 *4 1/5 б) 3 * 5 1/4 * 1 - вопрос №244734012161123344153514117512411 от Fedot4ik 22.09.2020 21:31

Question

Математика: А) 12 * 1/6 * 1 1/2 *3 3/4 *4 1/5 б) 3 * 5 1/4 * 1 1/7*5 1/2 *4/11

Fedot4ik · Answer

12 * 1/6 * 1 1/2 *3 3/4 *4 1/5 = 47 1/4
12 * 1/6 = 2
2*1 1/2 = 2* 3/2 = 3
3* 3 3/4 = 3*15/4=45/4
45/4*4 1/5 = 45/4*21/5=189/4 = 47 1/4

3 * 5 1/4 * 1 1/7*5 1/2 *4/11= 36
3 * 5 1/4 = 3*21/4=63/4
63/4*1 1/7 = 63/4*8/7=18
18*5 1/2= 18*11/2=99
99*4/11=36