\(\dfrac{3}{4}\cdot\dfrac{5}{6}=\dfrac{3\cdot5}{4\cdot2\cdot3}=\dfrac{5}{8}\)
\(\dfrac{3}{4}\text{x}\dfrac{5}{6}=\dfrac{3\text{x}5}{4\text{x}6}=\dfrac{15}{24}\)
\(\dfrac{3}{4}\cdot\dfrac{5}{6}=\dfrac{3\cdot5}{4\cdot6}=\dfrac{15}{24}=\dfrac{5}{8}\)
\(\dfrac{3}{4}\cdot\dfrac{5}{6}=\dfrac{3\cdot5}{4\cdot2\cdot3}=\dfrac{5}{8}\)
\(\dfrac{3}{4}\text{x}\dfrac{5}{6}=\dfrac{3\text{x}5}{4\text{x}6}=\dfrac{15}{24}\)
\(\dfrac{3}{4}\cdot\dfrac{5}{6}=\dfrac{3\cdot5}{4\cdot6}=\dfrac{15}{24}=\dfrac{5}{8}\)
4 5. 4. 6.
--- + --- --- + ---
15 6. 5. 7
3. 4. 2. 5
--- + --- --- + ---
5. 20. 5. 12
4 5. 4. 6.
--- + --- --- + ---
15 6. 5. 7
3. 4. 2. 5
--- + --- --- + ---
5. 20. 5. 12
4 5. 4. 6.
--- + --- --- + ---
15 6. 5. 7
3. 4. 2. 5
--- + --- --- + ---
5. 20. 5. 12
4 5. 4. 6.
--- + --- --- + ---
15 6. 5. 7
3. 4. 2. 5
--- + --- --- + ---
5. 20. 5. 12
4 5. 4. 6.
--- + --- --- + ---
15 6. 5. 7
3. 4. 2. 5
--- + --- --- + ---
5. 20. 5. 12
4 5. 4. 6.
--- + --- --- + ---
15 6. 5. 7
3. 4. 2. 5
--- + --- --- + ---
5. 20. 5. 12
4 5. 4. 6.
--- + --- --- + ---
15 6. 5. 7
3. 4. 2. 5
--- + --- --- + ---
5. 20. 5. 12
2/5+2/3+3/4
2/6+3/12
5/6+1/3
1/3+5/12+5/6
5/8+4/7
1/5+5/35
5/8+3/4
1/6+1/3+1/12
1/6+5/24+2/3
7/3+8/7
2/5+1/6
1/7+1/4+6/7+3/4
giúp với
và ai giải được gọi cụ
các phân số được viết theo thứ tự từ bé đến lớn là :
a . 5/6, 3/8 , 3/8,3/4 , 8/6 b 5/6 , 3/4 , 8/6, 3/8
c . 3/8, 3/4, 8/6, 5 /6 d 3/8 , 3/4, 5/6,8/6
Tìm x biết :
x + 4/5 = 4/5 + ( 3/7 + 3/5 ) 5/7 + x/35 = 4/5
x < 3/4 + 2 2/3 + 1 < x < 5/6 + 4
x< 5/6 - 3/4 2/3 < x < 2 - 5/6
a, 4/5 - 1/3. 5/3-3/2
b,7/6-2/3 5/4-3/8
c, 5/6-5/8. 7/4-5/6
Bài 2. a, Các phân số được sắp xếp theo thứ tự từ bé đế lớn là:
A, 2/3; 5/6; 4/2 B, 5/6; 4/2; 2/3 C, 4/2; 5/6; 2/3 D, 2/3; 4/2; 5/6.
b, Các phân số được sắp xếp theo thứ tự từ lớn đến bé là:
A, 2/3; 5/6; 4/2 B, 5/6; 4/2; 2/3 C, 4/2; 5/6; 2/3 D, 2/3; 4/2; 5/6.
day phân sô duoc xêp theo thu tu tu be dên lon la : A 3/4 1/6 2/3 4/5 B 1/6 2/ 3/4 5/4 C 2/3 1/6 3/4 5/4 D 5/4 1/6 2/3 3/4
5km2 400m2 = .......... m2
18000000m2 = km2
điền dấu >,<,=
5/4....3/4 5/6....6/5 6/8......3/4 7/3....7/5
rút gọn phân số
4/6 = ...................
5/15 = ..................
7/14 = ...............
6/24 = ..................
Các phân số được xếp theo thứ tự từ bé đến lớn là: a, 5/6; 3/8; 3/4; 8/6 b, 5/6; 3/4; 8/6; 3/8 c, 3/8; 3/4; 8/6; 5/6 d, 3/8; 3/4; 5/6; 8/6
Viết phân số thích hợp vào chỗ chấm: A) 3/4 nhân ( 5/6+6/5 )= 3/4 nhân 5/6+3/4 nhân...... B) 7/5 nhân ( 4/7-2/5 )= ...... nhân 4/7- ...... nhân 2/5