max jawab 2
JGN SAMPE SALAH YA KAK DAN PAKE CARA
[tex]1. \: \: 15\% \times 3.5 \div \frac{3}{4} = \frac{15}{100} \times \frac{35}{10} \div \frac{3}{4} = \frac{3}{20} \times \frac{7}{2} \times \frac{4}{3} = \frac{1}{5} \times \frac{7}{2} \times \frac{1}{1} = \frac{7}{10} = 0.7 \\ [/tex]
[tex]2. \: \: 0.75 \times 0.2 \div 2 \frac{1}{2} = \frac{75}{100} \times \frac{2}{10} \div \frac{5}{2} = \frac{3}{4} \times \frac{1}{5} \times \frac{2}{5} = \frac{3}{2} \times \frac{1}{5} \times \frac{1}{5} = \frac{3}{50} = 0.06 \\ [/tex]
[tex]3. \: \: 1 \frac{4}{5} \times (0.4 \div \frac{1}{4} ) = \frac{9}{5} \times ( \frac{4}{10} \div \frac{1}{4} ) = \frac{9}{5} \times ( \frac{2}{5} \times \frac{4}{1} ) = \frac{9}{5} \times \frac{8}{5} = \frac{72}{25} = 2 \frac{22}{25} \\ [/tex]
[tex]4. \: \: \frac{4}{5} \div 0.2 \times 1 \frac{1}{2} = \frac{4}{5} \div \frac{2}{10} \times \frac{3}{2} = \frac{4}{5} \div \frac{1}{5} \times \frac{3}{2} = \frac{4}{5} \times \frac{5}{1} \times \frac{3}{2} = \frac{2}{1} \times \frac{1}{1} \times \frac{3}{1} = 6 \\ [/tex]
[tex]5. \: \: 3.5 \times ( \frac{3}{5} \div 20\%) = \frac{35}{10} \times ( \frac{3}{5} \div \frac{20}{100} ) = \frac{7}{2} \times ( \frac{3}{5} \div \frac{1}{5} ) = \frac{7}{2} \times ( \frac{3}{5} \times \frac{5}{1} ) = \frac{7}{2} \times \frac{3}{1} = \frac{21}{2} = 10.5 \\ [/tex]
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