How do you evaluate 1.9-0.8 expressing your answer as a fraction?

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Answer 1 · 2016-11-26T00:12:46

We start by saying that #1.9-0.8=1.1#

Since there is one digit behind the decimal point, we are talinking about 10ths, so:
#1.1=1+0.1=1+1/10=1 1/10#

Or:
#1.1=11xx0.1=11/10#

Answer 2 · 2016-11-26T01:46:56

#11/10#

#1.9-0.8# = #19/10 - 8/10#

=#11/10#