Question

–1 3/8 : 3/8= –4/7:(-1 2/7)= 3,9*(-2/3= –2,8*(-1 1/7)= –1 2/5*0,125= 4/7* (- 4,2)= 0,25*(-2/3)*4* 3/2= (-12,5)*1/7*(–8)*7= 5/24*(–2,7)+5/24*(–3,3)= 1 1/3*(–3/4)–(2 1/7)*1 2/5

Answer 1

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Answer 2

Let's solve these expressions step by step:

1. (-1 3/8) ÷ (3/8)

To divide a fraction, multiply by its reciprocal: (-1 3/8) * (8/3) = (-11/8) * (8/3) = -11/3

2. (-4/7) ÷ (-1 2/7)

To divide a fraction, multiply by the reciprocal: (-4/7) * (-7/9) = (4/7) * (7/9) = 4/9

3. 3,9 * (-2/3)

Multiply the whole number by the fraction: 3 * (-2/3) = -2

4. (-2 8/9) * (-1 1/7)

First, convert the mixed numbers to improper fractions: (-2 8/9) = -26/9 (-1 1/7) = -8/7

Now, multiply the fractions: (-26/9) * (-8/7) = (26/9) * (8/7) = (13/3) * (8/7) = (13 * 8) / (3 * 7) = 104/21

5. (-1 2/5) * 0.125

Convert the mixed number to an improper fraction: (-1 2/5) = -7/5

Now, multiply by 0.125: (-7/5) * 0.125 = (-7/5) * (1/8) = (-7/40)

6. (4/7) * (-4.2)

Multiply the fractions by the decimal number: (4/7) * (-4.2) = (4/7) * (-42/10) = (-168/70)

Simplify the fraction: (-168/70) = (-84/35) = (-12/5)

7. (0.25) * (-2/3) * 4 * (3/2)

Multiply the numbers: (0.25) * (-2/3) * 4 * (3/2) = (1/4) * (-2/3) * 4 * (3/2)

Now, simplify: (1/4) * (-2/3) * 4 * (3/2) = (1/4) * (-2/3) * 4 * (3/2) = (-1/3) * (3/2) = -1/2

8. (-12.5) * (1/7) * (-8) * 7

Multiply the numbers: (-12.5) * (1/7) * (-8) * 7 = (-12.5) * (1/7) * (-8) * 7 = (-12.5) * (-8) = 100

9. (5/24) * (-2.7) + (5/24) * (-3.3)

Multiply the fractions by the decimal numbers: (5/24) * (-2.7) + (5/24) * (-3.3) = (5/24) * (-2.7) + (5/24) * (-3.3) = (-13.5/24) + (-16.5/24)

Now, add the fractions: (-13.5/24) + (-16.5/24) = (-30/24) = (-5/4) = -1 1/4

10. (1 1/3) * (-3/4) - (2 1/7) * (1 2/5)

First, convert the mixed numbers to improper fractions: (1 1/3) = 4/3 (2 1/7) = 15/7

Now, perform the operations:

(4/3) * (-3/4) - (15/7) * (7/5) = (-1) - (3)

Now, subtract:

-1 - 3 = -4

So, the final results are:

1. -11/3
2. 4/9
3. -2
4. 104/21
5. -7/40
6. -12/5
7. -1/2
8. 100
9. -1 1/4
10. -4