What is the value of each expression in simplest form 3/12 x 4/21

Question: What is the value of each expression in simplest form 3/12 x 4/21

Step-by-step explanation:

When you divide common fractions, multiply by the reciprocal:

(3/12) / (4/21)  =  (3/12) x (21/4)  =  (3 x 21) / (12 x 4)  =  63/48  =  21/16

57.09 minus 7.0435 equals

step-by-step explanation:

just subtrach them both and u get the answer of 50.0465

a

step-by-step explanation:

its wrong