Rut gon cac phan so sau:
78/84=
55/99=
100/175=
204/132=
Rut gon cac phan so sau
g)\(\frac{44116-14}{10290-35}\)
h)\(\frac{3600-75}{8400-175}\)
\(\frac{44116-14}{10290-35}=\frac{44102}{10255}\)
\(\frac{3600-75}{8400-175}=\frac{75\left(48-1\right)}{35\left(240-5\right)}=\frac{15\cdot47}{7\cdot235}=\frac{3\cdot5\cdot47}{7\cdot5\cdot47}=\frac{3}{7}\)
g, \(\frac{44116-14}{10290-35}=\frac{44102}{10255}\)
h, \(\frac{3600-75}{8400-175}=\frac{3525}{8225}=\frac{3}{7}\)
Hay rut gon cac phan so sau :
9 phan 6 ; 12 phan 4 va 90 phan 70
Cac ban hay rut gon va doc giong nhu minh nhe.
3 phan 2
12 phan 4 bang 3
9 phan 7
tk nha
\(\frac{9}{6}=\frac{9\div3}{6\div3}=\frac{3}{2}\)
\(\frac{12}{4}=\frac{12:4}{4:4}=\frac{3}{1}=3\)
\(\frac{90}{70}=\frac{90:10}{70:10}=\frac{9}{7}\)
rút gọn bằng cách chia nha
k mik nha bn
9 phần 6 = 3 phan 2
12 phần 4 =3
90 phần 70= 9 phần 7
tk cho minh nha
chuc ban hoc gioi
rut gon cac phan so
25 phan 40
42 phan 72
80 phan 100
25/40 = 25:5/40:5 = 5/8
42/72 = 42:6/72:6 = 7/12
80/100 = 80:20/100:20 = 4/5
1. 5/8 ( chia cho 5)
2. 7/12 (chia cho 6)
3. 4/5 (chia cho 20)
duyệt đi
25 phần 40 bằng 5 phần 8
42 phần 72 bằng 7 phần 12
80 phần 100 bằng 4 phần 5
nha!!!!!!!!!!!!!!!!!
1.Rut gon cac phan so sau: 15/24 ; 21/42 ; 54/18 ; 100/25 . (day la toan lop 4 cac ban a, lam nhanh cho minh cac ban nhe)
15/24 = 5/8 ; 21/24 = 7/8 ; 54/18 = 9/3 ; 100/25 = 4/1.
15/24=5/8;21/42=1/2;54/18=3/1;100/25=4/1
15/24 = 5/8
21/42 = 7/8
54/18 = 3/1 = 3
100/25 = 4/1 = 4
rUT gON pHAN sO sAU
20/78 ; 68/90 ; 500/547
Ta có:
\(\frac{20}{78}=\frac{20:2}{78:2}=\frac{10}{39}\)
\(\frac{68}{90}=\frac{68:2}{90:2}=\frac{34}{45}\)
\(\frac{500}{547}\) là phân số tối giản, không thể rút gọn thêm
rut gon cac phan so: 4/6;12/8;15/25;11/22;36/10;75/36;5/10;12/36;9/12;75/300;15/35;4/100
4/6=2/3; 12/8=3/2; 15/25=3/5; 11/22=1/2;36/10=18/5; 75/36=25/12; 5/10=1/2; 12/36=1/3; 9/12=3/4;75/300=1/4; 15/35=3/7; 4/100=1/25
Rut gon cac phan so sau:
15151515/49494949 ;128128128/256256256
15151515/49494949 = 15/49
128128128/256256256 = 1/2
rut gon phan so 59/55
rut gon cac phan so sau
\(\frac{18.2+9}{27}\)
\(\frac{18.2+9}{27}=\frac{9.2.2+9}{3.9}=\frac{9\left(2.2+1\right)}{3.9}\)
\(\Rightarrow\frac{2.2+1}{3}=\frac{5}{3}\)