In fractions what is the answer to 3/4 x 21?

Remember

(a/b) times (c/d) = (a times c) / (b times d)

so

3/4 times 21=

3/4 times 21/1=

(3 times 21) / (4 times 1) =

63/4

answer is 63/4

if yo want mixed fractions

63/4=40/4+20/4+3/4=10+5+3/4=15 and 3/4

answer is 63/4 or 15 and 3/4

3/4 x 21

=

3/4 x 21/1

=

63/4