\(=\left(\dfrac{7}{12}+\dfrac{5}{12}\right)+\left(\dfrac{4}{3}+\dfrac{2}{3}\right)=1+2=3\)
Đúng 3
Bình luận (1)
Các câu hỏi tương tự
1) Tính
a) 9/12 - 5/12 ; 9/12 - 1/3 ; 7 - 3/2 ; 9/4 - 2
b) 2/7 + 5/7 ; 1/3 + 5/12 ; 2 + 2/5 ; 6/9 + 3
c) 2/3 x 4/7 ; 3/11 x 2 ; 4 x 2/7
d) 8/21 : 4/7 ; 8/7 : 4 ; 5 : 2/3
AI LÀM NHANH VÀ ĐÚNG NHẤT THÌ MÌNH TICK CHO!!!!
13 tháng 4 2023 lúc 21:30
4/7 + 3/4 + 2/7 18/7 - 2 10/12 - 12/36
5/3 - 3/5 + 6/11 3/5 x 3/7 : 5
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
Giúp mình với mình tick hết
7/6+5/12-1/18-1=? 13/6+5/18+3-7/12=?
3+11/4-1/12-3/16=? 2/5x7/4-2/5x3/4=?
4 5. 4. 6.
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15 6. 5. 7
3. 4. 2. 5
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5. 20. 5. 12
4 5. 4. 6.
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15 6. 5. 7
3. 4. 2. 5
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5. 20. 5. 12
4 5. 4. 6.
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15 6. 5. 7
3. 4. 2. 5
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5. 20. 5. 12
4 5. 4. 6.
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15 6. 5. 7
3. 4. 2. 5
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5. 20. 5. 12
4 5. 4. 6.
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15 6. 5. 7
3. 4. 2. 5
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5. 20. 5. 12
4 5. 4. 6.
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15 6. 5...
Đọc tiếp
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 - 5/6. 7/8 + 3/4. 2/5 + 3/4.
7/12 - 2/7 + 1/12. 12/17 - 5/17 - 4/17
14 tháng 2 2022 lúc 22:05
quy đồng mẫu số :
4/3 và 5/8
4/5 và 5/9
4/9 và 7/12
1/2 ; 2/3 và 7/12
Đúng ghi Đ sai ghi S
a) 3/8+4/8=7/8 b) 4/7+3/5 =7/12
c) 5/8+3/5=49/40 d) 2/3+3/4=17/12
Tính
A. 19/21-1/3+3/7
B. 1+2/3-5/3
C. 7/12+1/3-3/4
D. 5/7-4/7*1/4
E. 7/12*4/3+2/9