TOLONG DIKERJAIN PAKAI JALAN YAAITU DIJADIIN PECAHAN BIASA MAKASIHH​

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TOLONG DIKERJAIN PAKAI JALAN YAAITU DIJADIIN PECAHAN BIASA MAKASIHH​

TOLONG DIKERJAIN PAKAI JALAN YAAITU DIJADIIN PECAHAN BIASA MAKASIHH​

Nomor 1.

frac{3}{7} + (1.5 div 2.5 )\ \ = frac{3}{7} + (frac{15}{10} div frac{25}{10} ) \ \ = frac{3}{7} + ( frac{3}{2} div frac{5}{2} ) \ \ = frac{3}{7} + ( frac{3}{2} times frac{2}{5} ) \ \ = frac{3}{7} + ( frac{3}{1} times frac{1}{5} ) \ \ = frac{3}{7} + frac{3}{5} = frac{15 + 21}{35} = frac{36}{35}

Nomor 2.

(2.5 div frac{1}{4} ) - (1 frac{1}{5} times 20%) \ \ = ( frac{25}{10} times frac{4}{1} ) - ( frac{6}{5} times frac{20}{100} ) \ \ = ( frac{5}{2} times frac{4}{1} ) - ( frac{6}{5} times frac{1}{5} ) \ \ = frac{20}{2} - frac{6}{25} = frac{10}{1} - frac{6}{25} \ \ = frac{250 - 6}{25} = frac{244}{25}

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Penjelasan dengan langkah-langkah:

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Nomor 1 :

frac{3}{7} + (1.5 div 2.5)

= frac{3}{7} + ( frac{15}{10} div frac{25}{10} )

= frac{3}{7} + ( frac{3}{2} times frac{2}{5} )

= frac{3}{7} + ( frac{3}{1} times frac{1}{5} )

= frac{3}{7} + frac{3}{5}

= frac{ 36}{35}

Nomor 2 :

(2.5 div frac{1}{4} ) - (1 frac{1}{5} times 20%)

= (frac{25}{10} times frac{4}{1} ) - ( frac{6}{5} times frac{20}{100} )

= ( frac{5}{2} times frac{4}{1} ) - ( frac{6}{5} times frac{1}{5} )

= frac{20}{2} - frac{6}{25}

= frac{10}{1} - frac{6}{25}

= frac{244}{25}

= 9 frac{76}{25}

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