Question

tolong jawab ini jangan sembarangan
​

Answer 1

No. 2

Diket =

• Ada 2 1/4 kg gula
• Diambil 1/6 kg

Dit =

• Ada brp gula skrg?

Jawab

[tex]2 \frac{1}{4} - \frac{1}{6} = \frac{9}{4} - \frac{1}{6} \\ \\ = \frac{27 - 2}{12} = \frac{25}{12} = 2 \frac{1}{12} kg \\ [/tex]

Jadi gulanya skrg ada 2 1/12 kg

No. 3

Diket =

• Punya 6 kg beras
• Dimasak 2/3 kg
• Hari berikutnya dimasak lagi 3/5 kg

Dit =

• brp beras yg msh trsisa?

Jawab

[tex]6 - \frac{2}{3} - \frac{3}{5} = \frac{6}{1} - \frac{2}{3} - \frac{3}{5} \\ \\ = \frac{90 - 10 - 9}{15} = \frac{71}{15} = 4 \frac{11}{15} kg[/tex]

jdi yg msh tersisa ad 4 11/15 kg

No. 4

Diket =

• punya kawat 12 1/4 m
• diambil 5 2/5 m

Dit =

• brp sisa kawat?

Jawab

[tex]12 \frac{1}{4} - 5 \frac{2}{5} = \frac{49}{4} - \frac{27}{5} \\ \\ = \frac{245 - 108}{20} = \frac{137}{20} = 6 \frac{17}{20} m[/tex]

jdi sisa kawat masih ada 6 17/20 m

smg mmbntu