Các câu hỏi tương tự
Tich cua hai phan so la 3/7 neu them vao thua so thu nhat 2 don vi thi tich la 13/21. Tim hai phan so do.
Ai giai that chi tiet va de hieu thi minh tick cho.
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.
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 ?
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 2 so la 444.neu them 3 don vi vao so nhan thi tich moi la 555.tim 2 so do
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 so biet tich = 2/5 biet them vao thua so thu 23 don vi thi tich = 28/15
tich cua hai so la 276 neu them 19 dv vao so thu nhat thi tich 2 so la 713 tim 2so do
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