\(4+\dfrac{35}{55}=4+\dfrac{7}{11}=\dfrac{44}{11}+\dfrac{7}{11}=\dfrac{51}{11}\)
4+ \(\dfrac{35}{55}\)
= \(\dfrac{4}{1}+\dfrac{35}{55}\)= \(\dfrac{220}{55}+\dfrac{35}{55}\)
\(=\dfrac{255}{55}=\dfrac{51}{11}\)
\(4+\dfrac{35}{55}=4+\dfrac{7}{11}=\dfrac{44}{11}+\dfrac{7}{11}=\dfrac{51}{11}\)
4+ \(\dfrac{35}{55}\)
= \(\dfrac{4}{1}+\dfrac{35}{55}\)= \(\dfrac{220}{55}+\dfrac{35}{55}\)
\(=\dfrac{255}{55}=\dfrac{51}{11}\)
(4*x+28)*(3+55) :5=35
[ { 4 x X + 28 } x 3 + 55 ] : 5 = 35
Tìm X , biết :
[ ( 4 * X +28 ) * 3 + 55 ] : 5 =35
tim x
(4*x+28)*(3+55):5=35
tính nhanh
a, 4/5 * 3/7 + 4/5 * 4/7
b, 20 * 45 + 55 * 20/35 * 1996 - 1991 * 35
c, (1 - 1/2) * (1 - 1/3) * (1 - 1/4) * (1 - 1/5)
Có bao nhiêu chữ số 0 ở tận cùng của tích sau : 4*6*8*35*45*55
Bai 1: Tinh nhanh:
a] 2,5 * 35 + 2,5 * 64
b] 35,75 * 55 - 35,75 * 41 - 35,75 * 4
Tính:
18 + 16 + 14 + 35 + 110 + 160 + 150 + 145+ 158 + 140 + 55 + 25 = …
110 + 160 + 150 + 145+ 158 + 140 = …
55 + 25 + 18 + 16 + 14 + 35 = …
a, [(4.x+28):3+55]:5=35
b, (2/3.5+2/5.7+2/7.9+.....+2/19.21).x=9/7
tìm x