⟩⟩ Soal ⟨⟨
Dewi memiliki terigu1 1/4 dan membeli terigu 3 1/2 kg. Dewi membuat kue menggunakan tiga perempat trigunya
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⟩⟩ Penyelesaian ⟨⟨
[tex]\sf 1 \frac{1}{4} + 3 \frac{1}{2} - \frac{3}{4} = [/tex]
[tex]\sf = \frac{4 \times 1 + 1}{4} + \frac{2 \times 3 + 1}{2} - \frac{3}{4} [/tex]
[tex]\sf = \frac{4 + 1}{4} + \frac{6 + 1}{2} - \frac{3}{4} [/tex]
[tex]\sf = \frac{5}{4} + \frac{7}{2} - \frac{3}{4} [/tex]
[tex]\sf = \frac{5}{4} + \frac{7 \times 2}{2 \times 2} - \frac{3}{4} [/tex]
[tex]\sf = \frac{5}{4} + \frac{14}{4} - \frac{3}{4} [/tex]
[tex]\sf = \frac{5 + 14 - 3}{4} [/tex]
[tex]\sf = \frac{19 - 3}{4} [/tex]
[tex]\sf = \frac{16}{4} [/tex]
[tex]\sf= 4 \: kg[/tex]
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⟩⟩ Kesimpulan ⟨⟨
Maka, sisa tepung terigu nya adalah 4 kg
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