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Calculate the simplified form of after rationalising the denominator.
MATHEMATICS · Single correct · GCSE · Mathematics · Number · Number
Problem
Calculate the simplified form of
3
4
7
\dfrac{3}{4\sqrt7}
4
7
3
after rationalising the denominator. (a)
9
7
28
\dfrac{9\sqrt7}{28}
28
9
7
(b)
7
28
\dfrac{\sqrt7}{28}
28
7
(c)
3
7
28
\dfrac{3\sqrt7}{28}
28
3
7
(d)
3
7
7
\dfrac{3\sqrt7}{7}
7
3
7
Related theory
Real Number System
Surds and rationalisation
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