Viết (theo mẫu):

a) Mẫu: 1 : 4 = \(\frac{1}{4}\)

5 : 17 = \(\frac{5}{{17}}\)

4 : 25 = \(\frac{4}{{25}}\).

b) Mẫu: 12 : 3 = \(\frac{{12}}{3}\)

24 : 8 = \(\frac{{24}}{8}\).

36 : 6 = \(\frac{{36}}{6}\).