How to convert this fraction
Divide 2 by 5 using integer long division. The whole-number part is 0; the remaining fraction is 2/5.
- Bring down a zero: remainder × 10 gives the next decimal digit 4; the new remainder is 0.
The remainder reaches zero after 1 decimal places, so 2/5 = 0.4 exactly.
Check: 0 × 5 + 2 = 2, so the quotient and remainder reconstruct the original fraction.