Hasil dari 2 1/5 : 1 1/5 - 1 1/4 adalah Sama caranya Tolong bantuannya

Diketahui :
- 2 1/5 = 11/5
- 1 1/5 = 6/5
- 1 1/4 = 5/4

Ditanya : 2 1/5 ÷ 1 1/5 - 1 1/4 = ....?

Penyelesaian :

[tex]2 \frac{1}{5} \div 1 \frac{1}{5} - 1 \frac{1}{4} \\ = \frac{11}{5} \div \frac{6}{5} - \frac{5}{4} \\ = \frac{11}{5} \times \frac{5}{6} - \frac{5}{4} \\ = \frac{11}{1} \times \frac{1}{6} - \frac{5}{4} \\ = \frac{11}{6} - \frac{5}{4} \\ = \frac{2 \times 11 - 3 \times 5}{12} \\ = \frac{22 - 15}{12} \\ = \frac{7}{12} [/tex]

Maaf Kalau Salah