Question

12 and 13 both
please do it on a paper

Answer 1

I have solved ur problems hope.....

Answer 2

hiii 12 th one

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$(( \frac{2}{3} {2})) {3)} \times ( \frac{1}{3} ) - 4 \\ (2 \frac{2}{3} ) \\ {6} \times \frac{1}{3 } - 4 \\ \frac{2 {}^{6} }{3 {}^{6 } } \times \frac{1}{3} - 4 \\ \frac{64}{3 {}^{7} } - 4 \\ \frac{64}{2187} - 4 \\ = - \frac{8684}{2187}$