The welder needs to cut off 9 3/8 inches from the longer piece. ;
The welder needs to cut off 9 3/8 inches from the longer piece of pipe. This was determined by subtracting the desired length (18 3/4 inches) from the original length (28 1/8 inches). After converting to fractions and performing the calculation, we find the amount to cut off is 9 3/8 inches.
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