Tolong jawab diatas dengan benar pakai cara

Jawaban :
1.

[tex]4.25 - 1 \frac{1}{4} - 1 \frac{1}{4} = \frac{425}{100} - \frac{5}{4} - \frac{5}{4} \\ = \frac{425}{100} - \frac{125}{100} - \frac{125}{100} = \frac{175}{100} \\ = 1 \frac{75}{100} = 1 \frac{3}{4} \: \: \: \: \: a.[/tex]
2.
[tex]1 \frac{2}{3} \times 24\% \\ 1.66 - 0.24 = 1.42 = 1.2 \: \: b[/tex]