Learn Before
Example

Simplifying 2775\frac{\sqrt{27}}{\sqrt{75}}

Simplify a quotient of two square roots where neither radicand is a perfect square, by applying the Quotient Property of Square Roots in reverse to combine them under a single radical.

2775\frac{\sqrt{27}}{\sqrt{75}}

Step 1 — Apply the Quotient Property in reverse. Since neither 2727 nor 7575 is a perfect square, combine both radicands under one radical sign:

2775=2775\frac{\sqrt{27}}{\sqrt{75}} = \sqrt{\frac{27}{75}}

Step 2 — Remove common factors inside the radical. Factor both numbers: 27=3927 = 3 \cdot 9 and 75=32575 = 3 \cdot 25. Cancel the shared factor of 33:

39325=925\sqrt{\frac{3 \cdot 9}{3 \cdot 25}} = \sqrt{\frac{9}{25}}

Step 3 — Simplify. The reduced fraction 925\frac{9}{25} is a perfect square fraction, since 9=329 = 3^2 and 25=5225 = 5^2:

925=35\sqrt{\frac{9}{25}} = \frac{3}{5}

The result is 35\frac{3}{5}. Using the Quotient Property in reverse is especially effective when neither radicand is individually a perfect square — combining them under a single radical allows common factors to be identified and canceled, potentially reducing the fraction under the radical to a perfect square that simplifies cleanly.

0

1

Updated 2026-04-21

Contributors are:

Who are from:

Tags

OpenStax

Elementary Algebra @ OpenStax

Ch.9 Roots and Radicals - Elementary Algebra @ OpenStax

Algebra

Math

Prealgebra

Related
Learn After