The answer is
5mn(KUASA DUA) -6gh(KUASA DUA) +2
<em>Answer is 0.009 </em>
<em></em>
0.9 ( 0.01 m / cm ) = 0.009
In order to add these fractions we have to make a common denominator.
1/5 can turn into 2/10 Its the same thing. And its easier to solve with.
now lets multiply.
× 
Now we add across
2 + 1 = 3
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10 + 10 = 10 ( When adding fractions like these the denominator stays the same)
So your answer is...

Good Luck! :)