What is (sqrt(21))/7 ?

The solution to (sqrt(21))/7 is (sqrt(3))/(sqrt(7))

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simplify (sqrt(21))/7

simplify

\frac{21}{7}

\frac{3}{7}

Decimal Notation

0.65465 \dots

Solution steps

\frac{21}{7}

Factor

21 : 73

= \frac{7 3}{7}

Apply radical rule:

a = a a

7 = 77

= \frac{7 3}{7 7}

Cancel the common factor:

7

= \frac{3}{7}

2 x^{2} + 5 x + 7 + (- 10) x^{2} - 7 x + 1

z^{101} + z^{100}

\frac{1}{4} \div \frac{7}{4}

e^{l n (- 2)}

((x - 3) + y)^{2}