The car was 7/8 of fuel in it and they drove 150 miles and there was 1/3 left over. What percentage of fuel did they use?

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7/8-1/3 NOW FIND A COPMMON DENOMINATOR &SUBTRACT THE FRACTIONS.
(7*3-1*8)/24
(21-8)/24
13/24 IS THE AMOUNT OF GAS USED TO DRIVE 150 MILES.

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