(1/2+5/6+11/12+39/30+41/42).x=3 1901/420.x=3 x=3:1901/420 x=1260/1901
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Các câu hỏi tương tự
Bài 1 Tìm x,biết
x.3/5=2/3
x.7/17=17/8
3/4 chia x=-7/12
3/8 - 1/6.x=1/4
1/3+1/2 chia x=-4
Bài 2 Tính
-6/11 chia [3/5 . 4/11]
7/12 + 5/12 chia 6 -11/36
[4/5 + 1/2] chia [3/13 - 8/13]
[2/3 - 1/4 + 5/11] chia [5/12 + 1 -7/11]
*Dấu . là dấu nhân nha mn*
Tìm x biết
1) 2.(x +5)+3.(x+7)41. 6) 7. (x -1)+5.(3-x)11.x-10
2) 5. ( x +6 ) +2.(x-3)38. 7) 4. (2+x)+3(x-2)12
3) 7.(5+x)+2.(x-10)15. 8) 5. ( 2+x) +4.(3-x)10x-15
4) 3. (x+4)+(8-2.x) 22. 9) 7.(x-2) +5.(3-x)11x-6
5) 4. (x+5)+3.(7-x)49. 10) 5.(3-x)+5.(x+4)6+4x
Đọc tiếp
Tìm x biết
1) 2.(x +5)+3.(x+7)=41. 6) 7. (x -1)+5.(3-x)=11.x-10
2) 5. ( x +6 ) +2.(x-3)=38. 7) 4. (2+x)+3(x-2)=12
3) 7.(5+x)+2.(x-10)=15. 8) 5. ( 2+x) +4.(3-x)=10x-15
4) 3. (x+4)+(8-2.x) =22. 9) 7.(x-2) +5.(3-x)=11x-6
5) 4. (x+5)+3.(7-x)=49. 10) 5.(3-x)+5.(x+4)=6+4x
1/2+5/6+11/12+19/20+29/30+41/42 = ?
tìm x biết 2016 x +(7/12+4/21+2/24+11/30+3/41+15/56)-(2/3+2/4+2/5)=0
Tính nhanh : a, 5/6 +11/12+19/20+29/30+41/42+55/56+71/72+89/90
b, ính tổng của 10 phân số trog phép cộng sau :
1/2 + 5/6+ 11/12 + 19/20 + 29/30 + 41/42 + 55/56 + 71/72 + 89/90 + 109/110
Tính nhanh:
a) 5/6+11/12+19/20+29/30+41/42+55/56+71/72+89/90
b) Tính tổng của 10 phân số trong phép cộng sau:
1/2+5/6+11/12+19/20+29/30+41/42+55/56+71/7289/90
1/2+5/6+11/12+19/20+29/30+41/42+55/56+71/72
A=1/2+5/6+11/12+19/20+29/30+41/42+55/56+71/72+89/90
Tích C:
C=1/2+5/6+11/12+19/20+29/30+41/42