write as a mixed number in lowest terms: 19.8
\[19.8=\frac{ 19.8 }{1 }=\frac{ 19.8 }{1 }(\frac{ 10 }{10 })=\frac{ 198 }{10 }\]
\[ 19.8 = \frac{198}{10} \]They're both even though so:\[ = \frac{99}{5} \]We know \(5\) is a prime, so there's no way this is going to reduce unless \(5\) is a factor of \(99\).
For mixed, you need to find remainder and divisor
why wouldnt the 19 be a whole number or part of the solution?
I mean divident
Yeah dividend it 19 so
\[ 19\frac{8}{10} = 19\frac{4}{5} \]
I was just getting them started. 198/10 gets rid of the decimal, giving you\[19\frac{ 8 }{ 10 }\] reducing to \[19\frac{ 4 }{5 }\]
oh ok i see now! how would you do 20.2 into the same thing lowest term? does the same rule apply like reducing it
Multiply top and bottom by 10 to get rid of the decimal then reduce. Or you can see that 20.2 is the same as 20+2/10, which is 20+1/5.
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