3 2. Tentukan hasil perkalian pecahan desimal berikut!

a. 0,2 0,4 = … C. 0.8 x 2,1 = …. b. 1,2 x 0,5 =d. 0,45 x 3,5 = . e. 1,2 x 3,25 f. 15,6 x 2.82 = …, sama cara caranya, ngasal ku laporin

3 2. Tentukan hasil perkalian pecahan desimal berikut!

Jawaban:

detail di penjelasan

Penjelasan dengan langkah-langkah:

$a. : : 0.2 times 0.4 = frac{2}{10} times frac{4}{10} = frac{8}{100} = 0.08$

$b. : : 0.8 times 2.1 = frac{8}{10} times frac{21}{10} = frac{168}{100} = 1.68$

$c. : : 1.2 times 0.5 = frac{12}{10} times frac{5}{10} = frac{60}{100} = 0.6$

$d. : : 0.45 times 3.5 = frac{45}{100} times frac{35}{10} = frac{1575}{1000} = 1.575$

$e. : : 1.2 times 3.25 = frac{12}{10} times frac{325}{100} = frac{ 3900}{1000} = 3.9$

$f. : : 15.6 times 2.82 = frac{156}{100} times frac{282}{100} = frac{43992}{10000} = 4.3992$