3/4 nay bang may gio
5/6 gio bang may phut
7/12 phut bang may giay
4 va 1/3 gio bang may phut
47 thang bang may nam may thang
68 gio bang may ngay may gio
96 phut bang may gio may phut
135 giay bang may phut may giay
6×1 bang may 11×0×12 bang may
1 oi cong 2 oi bang may oi
Biet 2/3 so trau bang 3/7 so bo va bang 5/8 so ngua. Hoi so trau bang may phan so ngua? So ngua bang may phan so bo?
1 oi +2 oi bang may oi
gia tien 1 cai but may dat gap 6 lan 1 cai but bi . neu ta mua 1 so but may bang 2 phan 5 so but bi thi gia tien mua but may gap may lan gia tien mua but bi
1 nha may san xuat 268 cai ao trong 2 ngay ngay thu nhat bang 1/3 so ao ngay 2 hoi moi ngay nha may san xuat bao nhieu cai ao
1 to mac vay + 2 to mac vay bang may to mac vay
1 xe may di tu a voi van toc 30km/giova sau 11/2 gio thi den b .hoi 1 nguoi di xe dap voi van toc bang 2/5 van toc xe may thi phai mat may gio moi di duoc quang duong ab