\(\frac{3}{4}.x+\frac{12}{16}=\frac{3}{4}\)
\(\frac{3}{4}.x+\frac{3}{4}=\frac{3}{4}\)
\(\frac{3}{4}.x=\frac{3}{4}-\frac{3}{4}\)
\(\frac{3}{4}.x=\frac{0}{4}=0\)
\(x=0:\frac{3}{4}\)
\(x=0\)
\(\dfrac{3}{4}\):x+\(\dfrac{1}{2}\):\(\dfrac{1}{4}\)=4
Tìm x
Tính bằng cách thuận tiện nhất:
a) 16, 2 x 3, 7 + 5, 7 x 16, 2 - 7, 8 x 4, 8 - 4, 6 x 7, 8 : 11, 2 + 12, 3 + 13, 4 - 12, 6 - 11, 5 - 10, 4
2 tính : a) 1+1/4+1/8+1/16 =
=
b) 2-1/8-1/12-1/16 =
=
c) 4/99 x 18/5 : 12/11 + 3/5 =
=
d) ( 1-3/4 ) x ( 1+ 1/3 ) : ( 1- 1/3 ) =
=
tính nhanh
25/37 x 18/29 + 18/29 x 12/37
31/85 x 11/19 + 31/85 x 12/19 - 42/19 x 31/85
c , 16/53 : 17/9 - 16/53 : 17/8
1/5 x 12/31 x 4/3 + 19/31 x 4/15
Tính
a) 12 : 3/4 + 75% x 1/2 - 16 x 50% b) 75% x 4 + 22,5 : 3 - 1,3/5
1,3/5 là hỗn số
Tính nhanh:
16 x 3 x 21 + 24 x 2 x 52 + 12 x 4 x 27
Tính nhanh:
16 x 3 x 21 + 24 x 2 x 52 + 12 x 4 x 27
tính
a, 2- 1/8 - 1/12 - 1-16
b, 4/99 x 18/5 : 12/11 + 3/5
c, ( 1- 3/4 ) x ( 1+ 1/3) : ( 1- 1/3 )
a) 2/3 + 1/2 + 1/6 b) 5/12 + 5/6 - 3/4 c) 1/3 x 3/5 x 2/5 d) 15/16 : 3/8 x 3/4
Bài tính đó :3
