How do you simplify #(3 4/10+5 2/10)+6/10#?

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Answer 1 · 2016-12-15T14:00:39

The detail for this is way over the top but I wanted to demonstrate several principles.

#9 1/5#

Note that #3 4/10# is the same as #3+4/10#

Applying this principle and grouping the numbers we have:

#3+5+[4/10+2/10+6/10]#

#8+[12/10]#

#8+[10/10+2/10]#

But #10/10=1#

#8+1+2/10#

#9+2/10" "->" "9+[(2-:2)/(10-:2)]#

#9+1/5 = 9 1/5#

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#color(red)("This is what the calculation should look like after practice")#

#=8 12/10 = 9 1/5#