+1197 When squaring a fraction, you can square the numerator and the denominator, and put the squares as a new fraction. (Square of numerator is the numerator, and you can guess where the denominator is.)
5 squared is 25, 3 squared is 9.
5/3 squared is 25/9.
+4711 If it's your homework learn from it.
Turn 5/3 into a decimal.
5/3
$${\frac{{\mathtt{5}}}{{\mathtt{3}}}} = {\mathtt{1.666\: \!666\: \!666\: \!666\: \!666\: \!7}}$$
Now square it (times by it self)
$${\frac{{\mathtt{5}}}{{{\mathtt{3}}}^{{\mathtt{2}}}}} = {\frac{{\mathtt{5}}}{{\mathtt{9}}}} = {\mathtt{0.555\: \!555\: \!555\: \!555\: \!555\: \!6}}$$
+1197 When squaring a fraction, you can square the numerator and the denominator, and put the squares as a new fraction. (Square of numerator is the numerator, and you can guess where the denominator is.)
5 squared is 25, 3 squared is 9.
5/3 squared is 25/9.
