Question

[linhnguyen]

1.viet so tu nhien nho nhat co tong cac chu so bang 38?

2.mot phep chia hai so tu nhien co thuong la 6 va so du la 33.tim so bi chia,so chia,biet rang tong cua so bi chia,so chia,thuong va so du bang 695.

3.trung binh cong cua 3 so le lien tiep bang 299.tim so lon nhat trong 3 so do?

4.cho phan so a/b.rut gon so phan so a/b ta duoc phan so 5/7.neu them 71 don vi vao tu so va giu nguyen mau so,ta duoc phan so co gia tri bang 18/11.tim phan so a/b?

5.tim y biet:a=(2/11*13+2/13*5+2/15*17+2/17*19+2/19*21)*462-y=19

 cac ban giai chi tiet gium minh nhe,ban nao giai duoc minh cho ***** lun

Answer 1

[linhnguyen]

ai giup to voi,xin do