Question

verify the closure property for addition father rational numbers - 5/7 and 8/9​

Answer 1

Step-by-step explanation:

Closure property for addition. Let a = −5/7 and b = 8/9 be the given rational numbers. ∴ Closure property is true for addition of rational numbers. Closure property for multiplication ∴ Closure property is true for multiplication of rational numbers.Read more on Sarthaks.com - https://www.sarthaks.com/976737/verify-the-closure-property-for-addition-and-multiplication-rational-numbers5-7and8

Answer 2

Answer:

Let, a = -5/7 and b = 8/9

a + b = -5/7 + 8/9 = -45+56/63 = 11/63 is rational No

And a + b = -5/7 × 8/9 = -40/63 is rational number

∴ Closure property is satisfy for the rational number.

Hope you understand