8.4 as a Fraction

8.4 as a fraction is 42/5. As a mixed number that is 8 2/5.

How to convert 8.4 to a fraction

1. 8.4 has one decimal place, so write it over 10 (a 1 followed by 1 zero) with the decimal point removed: 8.4 = 84/10.
2. Find the greatest common divisor of 84 and 10: it is 2.
3. Divide both by 2: 84 ÷ 2 = 42 and 10 ÷ 2 = 5.
4. The answer is 42/5.

Since 42 is larger than 5, you can also write it as the mixed number 8 2/5: 42 ÷ 5 = 8 remainder 2.

Check

Divide the numerator by the denominator: 42 ÷ 5 = 8.4. As a percent, 8.4 = 840%.

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