Các câu hỏi tương tự
tich cua 2 phan so la 2/5. Neu ta them vao thua so thu hai 3 don vi thi duoc tich la 28/15. tim 2 phan so do?
tich cua hai so la 276 . neu them 19 don vi vao so thu nhat thi tich cua hai so la 713 . tim hai so do ?
Neu tang them 5 don vi vao thua so thu nhat thi tich moi la 595. Tim 2 thua so biet tich cua chung bang 420.
tim hai so tu nhien biet rang tich cua chung la 630 va neu them 4 don vi vao mot thua so thi tich moi la 798
tim 2 phan so biet tich cua chung =8/15 .Biet cong them 4 vao phan so thu nhat thi tich hai phan so la 56/15
tich cua hai so la 276 neu them 19 dv vao so thu nhat thi tich 2 so la 713 tim 2so do
Tich cua hai so =360.neu bot 3 don vi o thua so va thua so kia giu nguyen thi tich moi la 270. tim 2 so
1. mot phep chia co tong cua so bi chia va so chia bang 72. biet rang thuong la 3 va so du la 8. tim so bi chia va so chia
2. TIm hai so tu nhioen .biet rang tich cua chung la 630 va neu them 4 don vi va mot thua so thi tich moi la 798
tim 2 so a va b biet tich cua chung la 444. Neu them 3 don vi vao so b thi tich moi la 555