Math, asked by abadat47, 7 months ago

please help me fast ​

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Answered by shivanti25
1

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Answered by srisantmoharana
1

Answer:

-2/9

Step-by-step explanation:

LCM=63

= (4x9/7x9)+(-8x7/9x7)+(-5x3/21x3)+(1x21/3x21)

=36/63- 56/63 - 15/63 + 21/63

= -14/63

= -2/9

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