hasil dari 1 1/6 + 2 1/3 : 3,5 adalah a. 1 1/4 b. 1 1/2 c. 1 5/6 d. 2 1/3

Mapel : Matematika
Bab : Pecahan

Diketahui :
- 1 1/6 = 7/6
- 2 1/3 = 7/3
- 3,5 = 35/10 = 7/2

Ditanya :
- 1 1/6 + 2 1/3 ÷ 3,5 = .....?

Penyelesaian :

[tex]1 \frac{1}{6} + 2 \frac{1}{3} \div 3.5 \\ = \frac{7}{6} + \frac{7}{3} \div \frac{7}{2} \\ = \frac{7}{6} + \frac{7}{3} \times \frac{2}{7} \\ = \frac{7}{6} + \frac{1}{3} \times \frac{2}{1} \\ = \frac{7}{6} + \frac{2}{3} \\ = \frac{(6 \div 6 \times 7) + (6 \div 3 \times 2)}{6} \\ = \frac{(1 \times 7) + (2 \times 2)}{6} \\ = \frac{7 + 4}{6} \\ = \frac{11}{6} \\ = 1 \frac{5}{6} [/tex]

Maaf Kalau Salah

1 1/6+2 1/3:3,5
=7/6 + 7/3 : 35/10
=7/6 + 7/3 x 10/35
=7/6 + 70/105
=246/210 + 140/210
= 385/210
=77/42