Step: 1

[Original expression.]

Step: 2

= 4×10 5×11 = 40 55

[Multiply numerators and denominators separately.]

Step: 3

= 8 11

[Simplify 40 55 by dividing numerator and denominator by their GCF 5.]

Step: 4

The product of 4 5 and 10 11 is 8 11 .

Correct Answer is : 8 11

Step: 1

= 9 8 × 10 7

[Original expression.]

Step: 2

= 9 × 1 0 8 × 7

[Multiply the numerators and denominators.]

Step: 3

= 90 56

[Simplify.]

Step: 4

= 45 28

[Divide numerator and denominator by their GCF 2.]

Step: 5

= 1 17 28

[Write as a mixed fraction.]

Correct Answer is : 1 17 28

Step: 1

[Original expression.]

Step: 2

= (1×2) (8×7)

[Multiply the numerators and the denominators.]

Step: 3

= 2 56

[Find the products.]

Step: 4

= 1 28

[Divide out the common factor 2.]

Correct Answer is : 1 28

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