\(\dfrac{5}{16}+y=\dfrac{1}{2}\)
\(y=\dfrac{1}{2}-\dfrac{5}{16}\)
\(y=\dfrac{8}{16}-\dfrac{5}{16}\)
\(y=\dfrac{3}{16}\)
\(\dfrac{5}{16}+y=\dfrac{1}{2}\)
\(y=\dfrac{1}{2}-\dfrac{5}{16}\)
\(y=\dfrac{8}{16}-\dfrac{5}{16}\)
\(y=\dfrac{3}{16}\)
\(\dfrac{5}{16}+y=\dfrac{1}{2}\)
\(y=\dfrac{1}{2}-\dfrac{5}{16}\)
\(y=\dfrac{8}{16}-\dfrac{5}{16}\)
\(y=\dfrac{3}{16}\)
\(\dfrac{5}{16}+y=\dfrac{1}{2}\)
\(y=\dfrac{1}{2}-\dfrac{5}{16}\)
\(y=\dfrac{8}{16}-\dfrac{5}{16}\)
\(y=\dfrac{3}{16}\)
\(\frac{5}{16}\)+ y = \(\frac{1}{2}\)
tìm y biết:1-(12/5+y-8/9):16/9=0
y x 7/16 y x 5/8 = 2 { mk cần gấp}
bài 1:
1/4 + 2/3 2/7 + 2/3 2/5 + 1/3 2/3 + 1/2 1/3 + 3/5 4/5 + 1/3
1/8 + 3/4 1/36 + 5/12 1/3 + 1/6 + 1/18.
bài 2:
15/16 - 3/16 17/18 - 5/6 3/4 - 4/9 1/2 - 2/5 5/6 - 3/10 3-1/3
4/5 - 1/10 5/2 - 1 5/8 - 2/5.
Bài 5 ( 1 điểm) Tìm y, biết:
a. 16 307 : y = 45 ( dư 17) b. y x 52 + y x 48 = 36 700
1. Tính nhanh:
a, 1/1 * 2 + 1/2 * 3 + 1/3 * 4
b, 5/11 *16 + 5/16 * 21 + 5/21 * 26
c, 1/20 + 1/30 + 1/42
2) Tìm y:
1 -(\(\dfrac{12}{5}\) + y - \(\dfrac{8}{9}\)) : \(\dfrac{16}{9}\) = 0
Tính a)16/13-(3/15-6/13)
b)21/8-(1/2+3/5)
c)3/2x9/5-3-2x2/7
d)32/45x18/16
e)(4/3-4/5)x25/2
f)2-1/3-1/2-1/6-3/12
Tinh nhanh
5/11+1/2+2/5+6/11+3/4+16/25+5/16
1313/2121+165/165/424242/151515
1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256