Chaoyun L. answered • 11/24/15
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Master of Math with concentration in Statistics
3^-2/ 3^-3+3^-2
= (1/9)/ (1/27)+1/9
= 1/9*27+1/9
=3+1/9
=28/9
Bianca J.
asked • 11/24/15Simplify the fraction
3^-2/ 3^-3+3^-2
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