Question

2/5 × 21/4 multiply it​

Answer 1

Answer:

2.1

Step-by-step explanation:

2/5 * 21/4

21 / 5*2

21/ 10

2.1

Answer 2

Answer:

4.2

Step-by-step explanation:

2/5×21/4

=2×21/5×4

=42/20

                  ∴2/5×21/4 = 4.2