6/7-2/5=6.5/7.5-2.7/5.7=30/35-14/35=44/35
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2/5+2/3+3/4
2/6+3/12
5/6+1/3
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5/8+4/7
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5/8+3/4
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7/3+8/7
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1/7+1/4+6/7+3/4
giúp với
và ai giải được gọi cụ
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.
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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.
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15 6. 5. 7
3. 4. 2. 5
--- + --- --- + ---
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.
--- + --- --- + ---
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
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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
a) 60 × (7/12 + 4/15) =
b) 5/6 ×( 6/5 - 6/7 ) =
c) 1/2 × 2/3 × 3/4 × 4/5 × 5/6× 6/7 × 7/8 × 8/9 =
23 tháng 2 2023 lúc 21:39
viết vào chỗ chấm
a.2/7+(3/7+5/7)= b.(6/11+5/11)+4/11= c.(5/6+7/6)+2/6=
Tính nhanh:
a) 1/2 x 2/3 : 5/6 x 5/6
b) 11x15x56/6x35x88
c) 2/7 x 7/5 + 2/7 - 2/7 x 6/5
(Ai làm đc e tick ạk)
a. 2/5 ; 3/7 * 3/7 ; 2/5 + 1999 =
b, 1/2 * 2/3 : 5/6 * 5/6=
c, 2/3 ; 4/5 ; 5/6 ; 8/7=
Quy đồng mẫu số 2 phân số:
5/6 và 7/5
7/6 và 5/7
2/5 và 6/2
7/8 và 9/7
2/8 và 7/2
tính
1/2 + 3/4 - 5/6
( 5/6 + 3/8 ) x 2/7
( 7/6 - 3/4 ) : 3/5
6/7 x 2/3 : 5/7
nhanh lên
tinh nhanh
a, 2/5 :3/7 * 3/7 :2/5 1999=
b, 1/2 * 2/3 :5/6 * 5/6 =
c, 2/3:4/5 : 5/6 : 8/7=
2, 3, 4, 5, 6, 7, 2, 3, 4, 5, 6, 7, 2, 3, 4, 5, 6, 7, ......
Hỏi số 97 trong dãy số trên là số nào?