Math, asked by 2009superstar123, 5 hours ago

class 7 plz dont spam

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Answered by lipikamondal1910

0

Step-by-step explanation:

(2/5-5/9) ÷ ( 2/5 - 1/4 )

(18-25)/45 ÷ (8-5)/20

-7/45 ÷ 3/20

-7/45 × 20/3

-28/27

reciprocal = -27/28

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