How do you evaluate #18\div 6+ 21\div 7#?

1 Answer
Suren Abreu
Jun 30, 2017

The answer is #6#.

Explanation:

We use BODMAS to help solve this. There are no Brackets, no Orders, no Multiplication, and no Subtraction, so we go straight to Division and then Addition. The direction is left to right.

#18-:6+21-:7#

There are two Divisions: #18-:6=3# and #21-:7=3#

Hence:

#3+3#

Last comes Addition: #3+3=6#

#6#

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