Question

7/21 - 8/9?
pla and with method​

Answer 1

Answer:

7/21 - 8/9

7/21×3/3 - 8/9 × 7/7

21/63 - 56/63

21-56/63

-35/63

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Answer 2

$\huge{\underline{\red{\mathfrak{AnSwEr}}}}$

$\frac{7}{21} - \frac{8}{9} \\ = \frac{21 - 56}{63} \\ = \frac{ - 35}{63}$