2 Answers

Axle Max · Answer 1 · 2015-10-14T22:04:46+0000

Exactly the same as you would do to simplify any other fraction . . .
divide top and bottom by their greatest common factor.

The greatest common factor of 77 and 84 is 7 .

Riccardo Queri · Answer 2 · 2015-10-19T20:43:10+0000

77/84

=21/84+21/84+21/84+14/84

=1/4+1/4+1/4+7/42

=3/4+7/42

=3/4+1/6

=9/12+2/12

=11/12

Or......

77÷7=11,

and 84÷7=12

Therefore 77/84=11/12.

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