Question

{3^(-1) * 9^(-1)]/(3/7)^-2

Answer 1

Answer:

1/147

Step-by-step explanation:

{3^(-1) * 9(-1)}

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(3/7)^(-2)

(1/3 * 1/9)/(7/3)^2

1/3 * 1/9 * (3/7)^2

1/3 * 1/9 * 9/49

1/3 * 1 /49

1*1/3*48

1/147

Answer=1/147