0.5cm
1 inch = 2.54 cm
1/5 inch = 2.54/5 = 0.508 cm
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One inch is equal to 2.54 centimetres. Therefore, 3/8 of an inch is equal to (2.54 / 8) x 3 = 0.9525 centimetres.
1 inch = 2.54 centimetres
1 inch = 2.54 centimetres (exactly).
There are 2.54 centimetres in one inch. Therefore, nine tenths of an inch is equal to 9/10 x 2.54 = 2.286 centimetres.
There are 2.54 centimetres in one inch. Therefore, one twentieth of an inch is equal to 1/20 x 2.54 = 0.127 centimetres.