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Lerabarinova
@Lerabarinova
November 2021
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выполните действия c подробным решением)
а) -12/25 + 3/50;
г) -3/7 * 8/9;
ж) 50/49 - 15/56
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Salik25
А) -12/25+3/50 = -24/50+3/50 = -21/50
г) -3/7*8/9 = -(3*8)/(7*9) = -24/63 = -8/21
ж) 50/49-15/56 = 400/392-105/392 = 295/392
2 votes
Thanks 4
zhanna3400
б) только еще сократить можно
Salik25
как?
Lerabarinova
8/21?
Salik25
чет тупанул.
Salik25
поздно
Lerabarinova
а последнее разве верно ?
Salik25
я перепроверил. вроде да.
Lerabarinova
хорошо , спасибо )
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Answers & Comments
г) -3/7*8/9 = -(3*8)/(7*9) = -24/63 = -8/21
ж) 50/49-15/56 = 400/392-105/392 = 295/392