tolong bantu pr mtk aku y kak

tolong diteliti lagi ya barangkali ada yang salah

[tex]a.) \\ = \frac{1}{2} + \frac{1}{3} - \frac{25}{100} \\ = \frac{150}{300} + \frac{100}{300} - \frac{75}{300} \\ = \frac{250}{300} - \frac{75}{300} \\ = \frac{175}{300} \\ = \frac{7}{12} \\ \\ b.) \\ = \frac{1}{2} + \frac{1}{3} \times \frac{25}{100} \\ = \frac{1}{2} + \frac{25}{300} \\ = \frac{150}{300} + \frac{25}{300} \\ = \frac{175}{300} \\ = \frac{7}{12} \\ \\ c.) \\ = \frac{1}{2} + \frac{1}{3} \div \frac{25}{100} \\ = \frac{1}{2} + \frac{1}{3} \times \frac{100}{25} \\ = \frac{1}{2} + \frac{100}{75} \\ = \frac{75}{150} + \frac{200}{150} \\ = \frac{275}{150} \\ = \frac{11}{6} \\ = 1 \frac{5}{6} [/tex]

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P.s : itu langsung aku ubah ke pecahan ya..