\(a,x.\frac{3}{4}-1=\frac{2}{75}\)
\(x.\frac{3}{4}=\frac{77}{75}\)
\(x=\frac{77}{75}:\frac{3}{4}=\frac{308}{225}\)
\(b,3-x:\frac{2}{3}=75\)
\(x:\frac{2}{3}=-72\)
\(x=-72.\frac{2}{3}=-48\)
tinh
2 - 5 phan 6
7 phan 8 + 3 phan 4
2 phan 5 + 3 phan 4
7 phan 12 - 2 phan 7 + 1 phan 12
12 phan 17 - 5 phan 17 - 4 phan 17
tim 1 phan 2 ; 1 phan 3 ; 1 phan 5 ; 1 phan 6 ; 1 phan 10 ; 1 phan 12 cua 60
tim 15% ; 20%; 50%; 75% cua 60
tim cac so ma 60 chia het cho so do.
tim 1 phan 2 ; 1 phan 3 ; 1 phan 5 ; 1 phan 6 ; 1 phan 10 ; 1 phan 12 cua 60
tim 15% ; 20%; 50%; 75% cua 60
tim cac so ma 60 chia het cho so do.
giúp mình nhanh nha mình đang cần gấp thank
viet cac so do duoi dang so thap phan
a. 1 phan 4 gio
2 phan 3 phut
2 phan 5 gio
b. 3 phan 4 kg
7 phan 10 m
3 phan 5 km
1 phan 4 the ki ..... nam
1 phan 3 nam ...... thang
2 phan 3 ngay ...... gio
5 phan 6 gio ..... phut
hay chia 210met vai thanh 3 phan sao cho phan1 bang 1/2 phan 2,phan 3 bang 2 lan phan 2.
chuyen ve cac phan so sau a, 3 va 7 phan 9 ;12 va 9 phan 11 ;6 va 2 phan 7 b, 14 va 1 phan 8 ; 124 va 4 phan 35
a) viet phan so 7/8 duoi dang 3 phan so co cung tu
b) tinh ( 1-1/2)x(1-1/3)x(1-1/4)x(1-1/5)
cho phan so 53/75 hay tim so tu nhien m sao cho khi cong them m vao tu va mau cua phan so da cho thi ta duoc phan so moi bang phan so 3/4