What is 18/13 as a Decimal?

Fraction to Decimal Converter

What is 18/13 as a decimal?

Answer

Fraction 18/13 as a decimal is

1.384615

≈ 1.38 to hundredths

Repeating decimal: denominator 13 has the factor 13, not 2 or 5 · the bar marks the period 384615 — 6 digits repeat forever

18 = 1 × 13 + 5: whole part 1, then divide the remainder 5

remainder	×10	= digit × 13 + new remainder	digit
5	50	3 × 13 + 11	3
11	110	8 × 13 + 6	8
6	60	4 × 13 + 8	4
8	80	6 × 13 + 2	6
2	20	1 × 13 + 7	1
7	70	5 × 13 + 5	5

Remainder 5 is back after the 6th division → the 6 digits 384615 repeat: 0.384615.

1 + 0.384615 = 1.384615

Fraction 18/13 as a decimal is 1.(384615)

To convert 18/13 to a decimal, divide the numerator by the denominator: 18 ÷ 13 = 1.(384615).

In lowest terms its denominator 13 has the prime factor 13, so the division never ends: a remainder comes back and the same digits repeat forever.

Multiply by 100: 18/13 ≈ 138.46%.