Joel234
Joel234
05-01-2015
Mathematics
Answered
Simplify using mental math 7 / 10 + 2 / 5 - 1 / 10
Answer :
blackwelldavid
blackwelldavid
05-01-2015
common denominator first. multiply 2/5 by 2 in the top and bottom so they all have a denominator of 10
7/10+4/10-1/10=10/10
10/10=1
Answer Link
Dlesar
Dlesar
05-01-2015
Assuming mental math still follows the order of operations, you have
[tex] \frac{7}{10} + \frac{4}{10} - \frac{1}{10} = \frac{10}{10} = 1[/tex]
So the answer is 1.
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