Question

simplify (-3/5)*(-10/9)*21/-4)*(-6)​

Answer 1

Answer:

first change the sign.

-×-×-×-=+

after that,

=(-3/5)×(-10/9)×21/-4×(-6)

=3/5×10/9×21/4×6

=3×10×21×6/5×9×4

=3780/180

=21

Answer 2

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