A 1 upon 3 upon 3 1 upon 6 into 27 - 1 upon 2 / 3 minus 2 upon 3
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Step-by-step explanation:
1/3/31/6×27-1/2/3-2/3
=31/3×1/162-3/2-2/3
=31/3×162(-9-4/6)
=(31×6-486×13)/486×6
=(186-6318)/2916
=6132/2916
=244÷972
=62/243
=0.2551
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