<prompt> Tafuta leftfrac12kulia8 cdot leftfrac34right-3.  <response>: Kwa kuwa leftfracabrightn leftfracbaright-n, basi tunajua leftfrac 34kulia-3 kushotofrac43kulia3.Pia, tunajua leftfracabrightn fracanbn, kwa hivyo leftfrac43 kulia3 frac4333 na leftfrac12kulia8 frac1828 .Kwa hivyo, tukichanganya maneno, tuna leftfrac12right8 cdot leftfrac34right-3 frac 4333 cdot frac1828 frac43 cdot 1833 cdot 28. Tunaweza kurahisisha kwa kuwa 43 64 26, na frac2628 frac122 tangu fracak aj ak-j.Kisha, tunatatua kwa frac43 cdot 1833 cdot 28 frac133 cdot frac262 8 frac133 cdot frac122. Kwa kuwa 33 3 cdot 3 cdot 3 27, na 22 4, tunaunganisha thamani hizi, na kupata jibu letu kuwa frac127 cdot frac 14 frac127 cdot 4 frac1108. 