Question

rút gọn các phân số sau

a,33/55

b,1212/1313

c,20/28

d,6/21

Answer 1

33/55=3/5

1212/1313=12/13

20/28=5/7

6/21=2/7

Answer 2

a, \(\frac{33}{55}=\frac{3}{5}\)

b, \(\frac{1212}{1313}=\frac{12}{13}\)

c, \(\frac{20}{28}=\frac{5}{7}\)

d, \(\frac{6}{21}=\frac{2}{7}\)

Answer 3

a) \(\frac{33}{55}=\frac{3}{5}\)

b) \(\frac{1212}{1313}=\frac{12}{13}\)

c) \(\frac{20}{28}=\frac{5}{7}\)

d) \(\frac{6}{21}=\frac{2}{7}\)