In the first day read 2/7 and in the second day 1/3 in the third day read the rest how many in the 3rd day? (to solve in fractions)

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Let x - quantity read for the 3rd day, then 2/7+1/3+ x =1 6/21+7/21+ x =21/21 13/21 + x =21/21 21/21 13/21= x 8/21= x x =8/21 Answer: 8/212/7+1/3=6/21+7/21=11/21 1-11/21=21/21-11/21=10/21
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Answer add