4+5/7=33/7
2-1/4=7/4
5-4/7=31/7
5/9 x 6/7 = 10/21
28/7 + 5/7 = 33/7
8/4 - 1/4 = 7/4
35/7 - 4/7 = 31/7
30/63 = 10/21
\(4+\dfrac{5}{7}=\dfrac{4}{1}+\dfrac{5}{7}=\dfrac{28}{7}+\dfrac{5}{7}=\dfrac{33}{7}\)
\(2-\dfrac{1}{4}=\dfrac{2}{1}-\dfrac{1}{4}=\dfrac{8}{4}-\dfrac{1}{4}=\dfrac{7}{4}\)
\(5-\dfrac{4}{7}=\dfrac{5}{1}-\dfrac{4}{7}=\dfrac{35}{7}-\dfrac{4}{7}=\dfrac{31}{7}\)
\(\dfrac{5}{9}\times\dfrac{6}{7}=\dfrac{5\times6}{9\times7}=\dfrac{30}{63}=\dfrac{10}{21}\)
4+5/7=4/1 + 5/7 = 28/7 + 5/7 = 33/7
2-1/4=2/1- 1/4 = 8/4 - 1/4 = 7/4
5-4/7=5/1- 4/7 =35/7 - 4/7 = 31/7
5/9 x 6/7 =30/63= 10/21
4+5/7=33/7
2-1/4=7/4
5-4/7=31/7
5/9 x 6/7 = 10/21 nha