1,8 + 2 1 per 4 + 2, 36 =

2.2236 sekian dari saya

[tex]1.8 = \frac{9}{5} \\ 2 \frac{1}{4} = \frac{9}{4} \\ 2.36 = \frac{59}{25} \\ \\ \frac{9}{5} + \frac{9}{4} + \frac{59}{25} \\ = \frac{20 \times 9 +25 \times 9 + 4 \times 59 }{100} \\ = \frac{180 + 225 + 236}{100} \\ = \frac{641}{100} \\ = 6.41[/tex]
Maaf Kalau Salah