tolong di jawab 1-8 pakai cara

jawaban no 1,7,8,4 dan 6 semogaembantu

[tex]1. \: 2 \frac{1}{2} \div 1 \frac{2}{3} + 1 \frac{3}{4} - 1 \frac{1}{4} \times 1 \frac{1}{3} = \\ = ( \frac{5}{2} \times \frac{3}{5} ) + \frac{7}{4} ( - \frac{5}{4} \times \frac{4}{3} ) \\ = \frac{3}{2} + \frac{7}{4} - \frac{5}{3} \\ = \frac{18}{12} + \frac{21}{12} - \frac{20}{12} \\ = \frac{19}{12} = 1 \frac{7}{12} [/tex]
[tex]7. \: ( {8}^{2} )^{ \frac{1}{3} } = \\ = {2}^{3. \frac{1}{3} } \\ = {2}^{3} \\ = 8[/tex]
[tex]8. \: 6 \sqrt{12} - \sqrt{27} + \sqrt{147} \\ = \sqrt{4} . \sqrt{3} - \sqrt{9} . \sqrt{3} + \sqrt{49} . \sqrt{3} \\ = 12 \sqrt{3} - 3 \sqrt{3} + 7 \sqrt{3} \\ = 16 \sqrt{3} [/tex]
maaf kalau salah:) semoga membantu:)