There are 8/3 of them in 1 inch.
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(8/3)(3/8 in) = 24/24 in = 1 in
The multiplicative inverse (reciprocal) of 3/8 is 8/3.
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(8/3)(3/8 in) = 24/24 in = 1 in
The multiplicative inverse (reciprocal) of 3/8 is 8/3.