Question

[Nguyễn Hiền Mai]

a) 15.(212121/434343 +333333/353535).=?

b)639.721721 / 721.639639 =?

c)327.412+400 / 328.412-12 =?

Answer 1

[Hồ Lê Phú Lộc]

a)=15.2154/1505

=6462/301

b)=461179719/138076

c,=134724+400/135136-12

=135124/135124

=1