12,8:1/25+6.1/4-132,9

[tex]12 .8 \div \frac{1}{25} + 6 \times \frac{1}{4} - 132.9 \\ \frac{128}{10} \times \frac{25}{1} + 6 \times \frac{1}{4} - \frac{1329}{10} \\ 64 \times 5 + \frac{3}{2} - \frac{1329}{10} \\ 320 + \frac{3}{2} - \frac{1329}{10} \\ \frac{3200}{10} + \frac{15}{10} - \frac{1329}{10} \\ = \frac{3215}{10} - \frac{1329}{10} \\ = \frac{1886}{10} = 188.6[/tex]
maaf barangkali masih ada yg salah