Q:

What is 642.8 as a fraction?

Accepted Solution

A:
Solution: 642.8 as a fraction is 3214/5MethodsConverting 642.8 to a fraction, Step-by-StepStep 1:The first step to converting 642.8 to a fraction is to re-write 642.8 in the form p/q where p and q both are positive integers. To start with, 642.8 can be written as simply 642.8/1 to technically be written as a fraction.Step 2:Next, we will count the number of fractional digits after the decimal point in 642.8, which in this case is 1. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 642.8/1 each by 10 to the power of that many digits. For instance, for 0.45, there are 2 fractional digits so we would multiply by 100; or for 0.324, since there are 3 fractional digits, we would multiply by 1000. So, in this case, we will multiply the numerator and denominator of 642.8/1 each by 10:642.8×101×10=642810\frac{642.8 × 10}{1 × 10} = \frac{6428}{10}1×10642.8×10​=106428​Step 3:Now the last step is to simplify the fraction (if possible) by finding similar factors and cancelling them out:642810=32145\frac{6428}{10} = \frac{3214}{5}106428​=53214​Become a Pro at Converting to FractionsBecome a pro at converting decimals or percentages to fractions by exploring some examples, like the ones below:What is 237.9 as a fraction?What is 4.26 as a fraction?What is 43.6 as a fraction?What is 20.8 as a fraction?What is 888.3 as a fraction?