### Home > CCA > Chapter 10 > Lesson 10.3.1 > Problem10-115

10-115.

Identify each sum or product as a rational number or an irrational number.

1. $6+\sqrt{5}$

A rational number is a number that can be written as a fraction of integers. Can a square root be written as a fraction of integers?

Irrational

1. $\frac{2}{3}+\frac{3}{4}$

Rational

1. $\frac{3}{5}·\sqrt{11}$

1. $\sqrt{9}\cdot\sqrt [ 3 ] { 9 }$