a.
[tex] \frac{1}{2} + ... = \frac{2}{3} [/tex]
b.
[tex] \frac{1}{4}+ ... = \frac{5}{6} [/tex]
Bagian a:
[tex] \begin{aligned} \frac{1}{2} + \cdots&= \frac{2}{3} \\ \\ \cdots &= \frac{2}{3} - \frac{1}{2} \\ \\ \cdots & = \frac{4 - 3}{6} \\ \\ \cdots& = \frac{1}{6} \end{aligned}[/tex]
[tex] \\ [/tex]
Bagian b
[tex] \begin{aligned} \frac{1}{4} + \cdots& = \frac{5}{6} \\ \\ \cdots& = \frac{5}{6} - \frac{1}{4} \\ \\ \cdots&= \frac{20 - 6}{24} \\ \\ \cdots& = \frac{14 \div 2}{24 \div 2} \\ \\ \cdots& = \frac{7}{12} \end{aligned}[/tex]
[tex]a). \frac{2}{3} - \frac{1}{2} = \frac{4 - 3}{6} = \frac{1}{6} \\ \\ b). \frac{5}{6} - \frac{1}{4} = \frac{10 - 3}{12} = \frac{7}{12} [/tex]
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