Answer:
gas left in tank 5/8
used 3/8
Explanation:
The tank is divided into 8 parts
The marker is 5 parts from the left so it is 5/8 full
When it is full it is 1 or 8/8
Take the full tank - part left = used
8/8 -5/8 = 3/8
3/8 used
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