Answer:
we can write
42/7 as 30/7
and
21/5 as 11/5
now
[tex] \frac{30}{7} \times \frac{11}{5} \\ = \frac{6}{7} \times 11 \\ = \frac{66}{7} [/tex]
we can write 66/7 as 93/7
hence,
option D is correct.
hope this answer helps you dear....take care!
