Question

Даю 10000000000 баллов за это

Answer 1

№10.

1)

(1,4 : 11/7 + 0,5 * 1 1/4 - 3/11) * 6

----------------------------------------------   =    78 1/7,

       (0,25 + 1 1/2) : 55/3

1) 1,4 : 11/7 = 14/10 * 7/11 = 98/110,

2) 0,5 * 1 1/4 = 1/2 * 5/4 = 5/8,

3) 98/110 + 5/8 - 3/11 = 392/440 + 275/440 - 120/440 = 547/440,

4) 547/440 * 6 = 3282/440 = 1641/220 = 7 101/220,

5) 0,25 + 1 1/2 = 1/4 + 3/2 = 1/4 + 6/4 = 7/4 = 1 3/4,

6) 1 3/4 : 55/3 = 7/4 * 3/55 = 21/220,

7) 7 101/220 : 21/220 = 1641/220 * 220/21 = 1641/21 = 78 1/7

2)

(3 3/4 + 2,5          2 3/4 - 1,5)

-----------------   --   -------------------   : 10/11 =  14 6/7,

(2 1/3 - 1 7/8       8,125 + 1 1/2)

1) 3 3/4 + 2,5 = 3 3/4 + 2 5/10 = 3 15/20 + 2 10/20 = 5 25/20 = 6 1/4,

2) 2 1/3 - 1 7/8 = 7/3 - 15/8 = 56/24 - 45/24 = 11/24,

3) 6 1/4 : 11/24 = 25/4 * 24/11 = 150/11 = 13 7/11,

4) 2 3/4 - 1,5 = 11/4 - 15/10 = 55/20 - 30/20 = 25/20 = 1 1/4,

5) 8,125 + 1 1/2 = 8 1/8 + 1 4/8 = 9 5/8,

6) 1 1/4 : 9 5/8 = 5/4 : 77/8 = 5/4 * 8/77 = 10/77,

7) 13 7/11 - 10/77 = 13 49/77 - 10/77 = 13 39/77,

8) 13 39/77 : 10/11 = 1040/77 * 11/10 = 104/7 = 14 6/7,

№1.

1)

4,0093 + 3,57999 - 2,74 = 4,84929,

1) 4,0093 + 3,57999 = 7,58929,

2) 7,58929 - 2,74 = 4,84929,

2)

1789,2 * 0,342 * 0,0052 = 3,18191328

1) 1789,2 * 0,342 = 611,9064,

2) 611,9064 * 0,0052 = 3,18191328