это дробь...

bikbaeva2004 @bikbaeva2004

May 2021 1 6 Report

решите пожалуйста -3/4+(-1/4)
-5/17+(-6 12/17)
-1+3/11
/ это дробь.

Answers & Comments

shikzaika 1) -3/4 + (-1/4) = -1 * 3/4 + -1 * 1/4 = -1 * (3/4 + 1/4) = -1 * ( (3+1)/4) = -1 * (4/4) = -1 * 1 = -1
2) -5/17 + (-6 12/17) = -1 * (5/17) + -1 * 6 12/17 = -1 * (5/17 + 6 + 12/17) = -1 * (6 + (5+12)/17) = -1 * (6 + 17/17) = -1 * (6 + 1) = -1 * 7 = -7
3) -1 + 3/11 = 3/11 - 1 = 3/11 - 11/11 = (3 - 11)/11 = -8/11

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