Question

[Bùi Thị Như Quỳnh]

Tính nhanh:  

175 73

+

76 39

-

29 73

-

37 39

=

Answer 1

[Nguyễn Thị Thương Hoài]

   \(\dfrac{175}{73}\) + \(\dfrac{76}{39}\) - \(\dfrac{29}{73}\) - \(\dfrac{37}{39}\)

=  (\(\dfrac{175}{73}\) - \(\dfrac{29}{73}\)) + (\(\dfrac{76}{39}\) - \(\dfrac{37}{39}\))

= \(\dfrac{146}{73}\) + \(\dfrac{39}{39}\)

= 2 + 1

= 3