3. Nilai dari (2 1/3 + 1 3/5) : 1 1/2 adalah

(21/3 + 13/5) : 11/2
=(105/15 + 39/15) : 11/2
=144/15 : 11/2 = 144/15 X 2/11 = 288/165 = 96/55 = 1 41/55
maaf kalau salah

[tex]( 2 \ \frac{1}{3} + 1 \ \frac{3}{5}) \div 1 \frac{1}{2} \\ = ( \frac{7}{3} + \frac{8}{5}) \div \frac{3}{2} \\ = (\frac{35}{15} + \frac{24}{15} )\times \frac{2}{3} \\ = \frac{59}{15} \times \frac{2}{3} \\ = \frac{118}{45} \\ = 2 \frac{28}{45} [/tex]