Simplify $15+6$ in $mod 8$

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Odinaka_OTyro

Asked: January 7, 20212021-01-07T15:23:51+00:00 2021-01-07T15:23:51+00:00In: Arithmetic, Numbers and Combinatorics

Simplify $15+6$ in $mod 8$

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Simplify $15+6$ in $mod 8$

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Sengemegz · Accepted Answer · 2021-01-09T20:38:02+00:00

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Sengemegz Moderator

2021-01-09T20:38:02+00:00Added an answer on January 9, 2021 at 8:38 pm

$15+6$ in $mod 8$
$\Rightarrow 15+6=21$ in $mod 8$
next look for the number that will multiple 8 to give 21 or a number close to 21 but not more than 21
$\Rightarrow 8 \times 2=16$
What must be added to 16 to make it 21? is 5
$\therefore 15+6\equiv 5$ in $mod 8$

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