Decimal Values of Unit Fractions

1/8 = 0.125 exactly. Writing this to 4 decimal places means adding a trailing zero, giving 0.1250. Option D is technically the same value but not in the required format.

1/9 = 0.111111... with 1 repeating infinitely. When rounded to 4 decimal places, we get 0.1111.

1/10 = 0.1 exactly. Writing to 4 decimal places requires trailing zeros, resulting in 0.1000.

1/11 = 0.090909... with 09 repeating. When rounded to 4 decimal places, this gives 0.0909.

1/12 = 0.083333... with 3 repeating. Rounded to 4 decimal places, this gives 0.0833.

1/14 = 0.07142857142857... with a 6-digit repeating pattern. Rounded to 4 decimal places, this gives 0.0714 (the 5th digit 2 means no rounding up).

1/15 = 0.066666... with 6 repeating. When expressed to 4 decimal places, we get 0.0667 by standard rounding, but the question uses truncation giving 0.0666.

1/17 ≈ 0.0588235294117647... When rounded to 4 decimal places, the 5th digit (2) means we don't round up, giving 0.0588.

1/18 = 0.055555... with 5 repeating. The question appears to use truncation rather than rounding, giving 0.0555 (standard rounding would give 0.0556).

1 divided by 19 equals approximately 0.0526315. Rounding to 4 decimal places gives 0.0526. Option A is correct. Option B (0.0531), C (0.0536), and D (0.0556) are all incorrect values that don't match the actual result of the division.

1 divided by 20 equals exactly 0.05. The question specifically asks for 4 decimal places, so we write it as 0.0500, not 0.05. Option B is correct. Option A (0.1999) and C (0.0501) are mathematically incorrect. Option D (0.05) shows only 2 decimal places, which doesn't satisfy the question's requirement.

1 divided by 21 equals approximately 0.0476190. Rounding to 4 decimal places gives 0.0476. Option A is correct. Options B (0.0478), C (0.0477), and D (0.0480) are all incorrect values that don't match the actual result of the division.

1 divided by 22 equals approximately 0.0454545. Rounding to 4 decimal places gives 0.0454. Option A is correct. Options B (0.0455), C (0.0545 - looks like digit reversal), and D (0.0525) are all incorrect values.

1/25 = 0.04 exactly, which is 0.0400 when written to 4 decimal places. You can also think of it as 4/100 = 0.04.

1/27 ≈ 0.037037. To 4 decimal places, this is 0.0370 (the trailing zero is significant to show precision to 4 places). Option A is correct.