Respuesta :

Answer:

7 5/8 km total

Step-by-step explanation:

4/8 + 7/8 + 12/8 + 12/8 + 12/8 + 14/8 = 61/8

61/8 = 7 5/8

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1/2km: 1 student
7/8km: 1 student
1 1/2km: 3 students
1 3/4km: 1 student

1/2+7/8+(1 1/2 * 3) + 1 3/4= ?

Find Lowest Common Denominator:

It is 8. Therefore,

1/2= 4/8 & (1 4/8*3) & 1 6/8
1 4/8= 12/8*3 = 36/8= 4 4/8


4/8+7/8+ 4 4/8 + 1 6/8 = 5 21/8
21/8= 2 5/8
2 5/8 + 5

= 7 5/8


Answer: 7 5/8km