Math, asked by manishsingh997019886, 9 months ago

help please for these qusition

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Answered by rakibahushen

2

Answer:

= - 106/105

Step-by-step explanation:

(-1)/5 - 4/7 - 5/21

= (-1) × 21/5×21 - 4×15/7×15 - 5×5/21×5

= -21/105 - 60/105 - 25/105

= (-21-60-25) /105

= -106/105

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