Помогите пожалуйста решитьЗаранее спасибо)

1.

(1 1/42,6-4)1,2+0,3

(1/413/5-4)6/5+3/10

(13/20-4)6/5+3/10

(-67/20)6/5+3/10

-67/205/6+3/10

-67/41/6+3/10

-67/24+3/10

-229/120=2 59/1202,49167

2.

0,25+1/12(1/31,25-9/16)

1/4+1/12(1/35/4-9/16)

1/4+1/12(5/12-9/16)

1/4+1/12(-7/48)

1/4-1/1248/7

1/4-4/7

-9/28-0,321429

3.

2/90,8-0,5/1,60,25

2/94/5-1/2/0,4

2/95/4-1/2/2/5

1/95/2-1/2/2/5

5/18-1/2/2/5

-2/9/2/5

2/9-/2/5

-5/9-0,555556

4.

2 3/4(1 1/2-2/5)+(3/4+5/6)3 1/6/(3 1/24 2/3+4 2/33 1/2)4 4/5

3/2(1/2-2/5)+19/121/31/6/(1/4+41/31/3)44/5

3/21/10+19/216/(1/4+4/9)44/5

3/210+19/216/25/3644/5

35+19/216/5/94

15+19/216/20/9

3259/216/20/9

3259/480=6 379/480=6,789583

5.

(2/15+712)30/43-(22 1/2)5/32/(11 5/11-8 21/22)1 2/3

43/6030/43-(1 1/2)5/32/(5-4 21/11)1 2/3

1/2-1/25/32/(5-84/11)1 2/3

1/2-5/64/-29/112/3

27/64/-58/33

27/64-/58/33

-891/3712-0,340032

6.

3/45/6+2 1/22/5-11 1/6/((1 1/2)^3-3/4)7/8

3/46/5+2/5-1 1/6/((1/2)^3-3/4)8/7

3/23/5+2/5-1/6/(1/8-3/4)8/7

9/10+2/5-1/6/-5/88/7

17/15/-51/7

17/15/-5/7

17/15-/5/7

-119/75=-1 44/75-1,58667

7.

227,36(865,6-20,840,5)8,38+1,12

227,36(865,6-842,4)8,38+1,12

227,3623,28,38+1,12

82,124+1,12

83,244=20811/250=83 61/250