Answer :
Answer:
1/21
Step-by-step explanation:
simplify before you multiply. 3/12 × 4/21 can be simplified by dividing 3÷3, 12÷4, 4÷4, and 21÷3. you would then get 1/3 × 1/7 which would equal 1/21.

Answer:
1/21
Step-by-step explanation:
simplify before you multiply. 3/12 × 4/21 can be simplified by dividing 3÷3, 12÷4, 4÷4, and 21÷3. you would then get 1/3 × 1/7 which would equal 1/21.