3/10 as a decimal

How to convert this fraction

Divide 3 by 10 using integer long division. The whole-number part is 0; the remaining fraction is 3/10.

1. Bring down a zero: remainder × 10 gives the next decimal digit 3; the new remainder is 0.

The remainder reaches zero after 1 decimal places, so 3/10 = 0.3 exactly.

Check: 0 × 10 + 3 = 3, so the quotient and remainder reconstruct the original fraction.