Rob's tablet is fully charged. He uses 1/12 of the charge playing games, 5/12 of the charge reading and 3/12 completing homework. What fraction of the charge remains on Rob's tablet

Question

Linda Jarvis

Mathematics

14 September, 07:33

Rob's tablet is fully charged. He uses 1/12 of the charge playing games, 5/12 of the charge reading and 3/12 completing homework. What fraction of the charge remains on Rob's tablet

+5

Answers (1)

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Johnathan Lyons · Answer 1

All of the number already have the same denominator, which is 12 so you can just add them.

(1+5+3) / 12=9/12

and subtract then from 1 = 12/12

(12-9) / 12=3/12