Question

1)(6\13 : 1 5\13 + 2\3)-0\375=?2)3 9\14 :(1 3\7-5\21 х0,9)-0,76=?3)(36,8-3,5х1 1\7): 1 16\25-14 13\15=?4)(9\22 + 1 12\33)х1,32-8\13х0,1625=?5)(6 8\15-4 21\45)х4,5-2 1\6 :0,52=? -только пожалуйста  с решением и понятно.Заранее спасбо вам большое 

Answer 1

(36,8-3,5х1 1\7): 1 16\25-14 13\15=5 2/15
1)3,5*1 1/7=3 5/10*1 1/7=7/2*8/7=8/2=4
2)36,8-4=32,8
3)32,8:1 16/25=328/10*25/41=40/2=20
4)20-14 13/15=19 15/15-14 13/15=5 2/15
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(9\22 + 1 12\33)х1,32-8\13х0,1625=2 6/25
1)9/22+1 12/33=27/66+1 24/66=1 51/66=1 17/22
2)1 17/22*1,32=39/22*132/100=234/100
3)8/13*0,1625=8/13*1625/10000=125/1250=1/10
4)234/100-1/10=234/100-10/100=224/100=2 24/100=2 6/25
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(6 8\15-4 21\45)х4,5-2 1\6 :0,52=
1)6 8/15-4 21/45=6 24/45-4 21/45=2 3/45=2 1/15
2)2 1/15*4,5=2 1/15*4 1/2=31/15*9/2=93/10
3)2 1/6:0,52=13/6:52/100=13/6*100/52=650/156=4 1/6
4)9 3/10-4 1/6=9 9/30-4 5/30=5 4/30=5 2/15

Answer 2

1. To solve the expression (6/13 : 1 5/13 + 2/3) - 0/375, let's first simplify the fraction inside the parentheses:

1 5/13 + 2/3 = (13/13 + 5/13) + 2/3 = 18/13 + 2/3

Now, we need to find a common denominator for 13 and 3, which is 39:

18/13 + 2/3 = (18/13) * (3/3) + (2/3) * (13/13) = 54/39 + 26/39 = 80/39

Next, we can simplify the expression further:

(6/13 : 80/39) - 0/375 = (6/13) * (39/80) - 0/375 = 234/1040 - 0/375 = 234/1040 = 117/520

Therefore, the value of the expression (6/13 : 1 5/13 + 2/3) - 0/375 is 117/520.

2. To solve the expression 3 9/14 : (1 3/7 - 5/21 x 0.9) - 0.76, let's first simplify the fraction inside the parentheses:

1 3/7 - 5/21 x 0.9 = (7/7 + 3/7) - (5/21 x 9/10) = 10/7 - 45/147 = 210/147 - 45/147 = 165/147 = 55/49

Now, we can solve the expression:

3 9/14 : (55/49) - 0.76 = (49/14) * (49/55) - 0.76 = 2401/770 - 0.76 = 2401/770 - 0.76 * 770/770 = 2401/770 - 581.2/770 = (2401 - 581.2) / 770 = 1819.8 / 770 ≈ 2.364

Therefore, the value of the expression 3 9/14 : (1 3/7 - 5/21 x 0.9) - 0.76 is approximately 2.364.

3. To solve the expression (36.8 - 3.5 x 1 1/7) : 1 16/25 - 14 13/15, let's first simplify the fraction inside the parentheses:

1 16/25 = (25/25 + 16/25) = 41/25

Now, we can solve the expression:

(36.8 - 3.5 x 1 1/7) : (41/25) - 14 13/15 = (36.8 - (3.5 x 8/7)) : (41/25) - (14 + 13/15) = (36.8 - (4 x 8/7)) : (41/25) - (14 + 13/15) = (36.8 - (32/7)) : (41/25) - (14 + 13/15) = (36.8 - (32/7)) : (41/25) - (210/15 + 13/15) = (