Tentukan hasil penjumlahan berikut

Tentukan hasil penjumlahan berikut

Materi : Pecahan

Note
$2 times frac{2}{3 } = frac{(2 times 3) + 2}{3} = frac{6 + 2}{ 3 } = frac{8}{3}$

a.
$frac{4}{9} + frac{2}{9} = frac{6}{9} = frac{2}{3} \ \ (masing : masing : dibagi : 3)$

b.
$frac{3}{6} + frac{5}{6} = frac{8}{6} = frac{4}{ 3} = 1 times frac{1}{3} \ \ masing : masing : dibagi : 2$

c.
$2 times frac{1}{3} + frac{3}{4} = frac{(2 times 3) + 1}{3} + frac{3}{4} = frac{7}{3} + frac{3}{4} = frac{7 times 4 + 3 times 3}{12} = frac{28 + 9}{12} = frac{37}{12} = 3 times frac{1}{12}$

d.
$frac{2}{3} + 3 times frac{5}{9} = frac{2}{3} + frac{(3 times 9) + 5}{9} = frac{2}{3} + frac{32}{9} = frac{2 times 3 + 32}{9} frac{38}{9} = 4 times frac{2}{9}$

e.
$frac{2}{3} + 2 times frac{1}{2} + 3 times frac{1}{4} = frac{2}{3} + frac{5}{2} + frac{13}{4} = frac{8 + 30 + 39}{12} = frac{77}{12} = 6 times frac{5}{12}$

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