Pakai cara iyaaa kaaa

Pakai cara iyaaa kaaa

Jawaban:

11) .

$6 frac{1}{6} - 1 frac{7}{15} + frac{3}{20} - 2 frac{1}{4} = : \ \ frac{37}{6} - frac{22}{15} + frac{33}{20} - frac{9}{4} = \ \ frac{370}{60} - frac{88}{60} + frac{9}{60} - frac{135}{60} = \ \ frac{156}{60} = frac{13}{5} : : : : : = a.(2 frac{3}{5} )$

12).

$frac{4}{9} div 1 frac{1}{3} = \ frac{4}{9} div frac{4}{3} = frac{12}{36} = frac{6}{18} = frac{3}{9} = b.(frac{1}{3} )$

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