Tong cua ba so la so lon nhat co ba chu so. Neu lay so thu nhat chia cho so thu hai thi duoc thuong la 5, du 3. So thu nhat hon tong cua hai so kia la 7 don vi. So thu nhat hon so thu hai la ?

Tong cua ba so bang 188,75 . So thu nhat be hon tong hai so kia 17,35 don vi . Tim so thu ba biet so thu ba kem so thu hai 224,55 don vi

tim tong cua 2 so thap phan biet so thap phan thu nhat co phan nguyen la so lon nhat co mot chu so va phan thap phan la so lon nhat co 2 chu so khac nhau , so thu 2 hon so thu nhat 17,3.

3 so co tong la 2000 . Biet so thu nhat hon tong 2 so kia la 108. Neu them vao so thu ba 24 don vi thi duoc so thu 2 . Tim so thu 2?

Tong cua 3 so la 1999 . So thu nhat lon hon tong cua 2 so kia 67 don vi . SSo thu 2 lon hon so thu ba 48 don vi . Tim 3 so do.

1. tbc cua 3 so la 19/60 .neu gap so thu nhat len 4 lan thi tbc cua chung se la 13/20 .tim 3 so , biet so thu hai hon so thu ba 1/6

2. trong mot phep tru co tong so bi tru ,so tru va hieu la 1998.biet hieu so bang 4/5 so tru .hay tim so bi tru va so tru , hieu

tong cua 3 so la 2010 so thu nhat lon hon tong 2so kia la 10 neu bot so thu 2 di 100 don vi thi duoc so thu 3. Tim so thu 3

cho ba so tu nhien co tong bang 1368.biet so thu nhat hon tong hai so kia la 210.so thu hai hon so thu ba la 333 don vi tim so thu ba