Math, asked by deepikasingla1983, 10 months ago

Multiply the sum of 6/7and -13/21 by their difference

Answers

Answered by wwwuamuam

5

Answer:

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Answered by sidboyina

2

Answer:

Step-by-step explanation:

6 / 7 and -13 / 21

18 / 21 + ( -13 / 21)

5 / 21

18 / 21 - (-13 / 21)

18 + 13 / 21

31 /21

5 * 31 => 155 / 441

21 21

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