Kak tolong jawb kak tolong jawab kak tolong jawb ​

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Kak tolong jawb kak tolong jawab kak tolong jawb ​

Kak tolong jawb kak tolong jawab kak tolong jawb ​

9.

0.9 - frac{9}{12} = frac{9}{10} - frac{9}{12} = frac{54 - 45}{60} = frac{9}{60} div 0.45 = frac{9}{60} div frac{45}{100} = frac{9 times 100}{60 times 45} = frac{900}{2.700} + 2 frac{2}{3} = frac{900}{2.700} + frac{8}{3} = frac{900 + 7.200}{2.700} = frac{8.100}{2.700} = frac{15}{5} = 3

10.

5 frac{1}{2} + 1 frac{1}{3} - 2 frac{3}{4} - 2 frac{1}{6} = frac{11}{2} + frac{4}{3} - frac{11}{4} - frac{13}{6} = frac{66 + 16 - 33 - 39}{12} = frac{10}{12} = frac{5}{6}