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

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)