Question

using suitable properties of rational number evaluate the following a. 3/14× -5/9× -21/10× 4/-3

plese help me I will help you​

Answer 1

Answer:

-11/28

Step-by-step explanation:

Rearranging the terms , we get

= [2/5 ×(-3/7)+(1/14)(2/5)]-1/6×3/2

= (2/5)[ -3/7 +1/14] - 1/4

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By Distributive property:

A×B + A×C = A(B+C)

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=(2/5) [ (-6+1)/14] - 1/4

= (2/5)×(-5/14) - 1/4

= -1/7 - 1/4 /* After cancellation */

=( -4 - 7)/28

= -11/28

Therefore,

2/5×-(3/7)-1/6×3/2+1/14×2/5

= -11/28