Question

Class 7 maths. Pls answer fast​

Answer 1

first we change 1/81 in power as(-1/3)and power 4

now we have same base

we use this 10 7. 3

(a/b)÷ (a/b) = (a/b)

so answer would be

2 4

(12/13)× (-1/3)

Answer 2

Sorry ! for the bad handwriting.

The answer is

$(12 \div 13)^{2} \times ( - 1 \div 3)^{2}$