Answer :

vivek2001
[tex] \frac{21}{4}* \frac{16}{7} [/tex]
=3*4
=12
[tex] \frac{21}{4} [/tex]×[tex] \frac{16}{7} [/tex]
=12
As 7 cancels 21 with 3 and 4 cancels 16,then we are left 3×4
Then its answer will be 12.

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