`19/8 - 5/4 + 16/3`
`= 57/24 - 30/24 + 128/24`
`= (57-30+128)/24`
`= 155/24`
\(\dfrac{155}{24}\) = 6. 458 (3)
\(\dfrac{19}{8}-\dfrac{5}{4}+\dfrac{16}{3}\)
\(=\dfrac{57}{24}-\dfrac{30}{24}+\dfrac{128}{24}\)
\(=\dfrac{155}{24}\)
`19/8 - 5/4 + 16/3`
`= 57/24 - 30/24 + 128/24`
`= (57-30+128)/24`
`= 155/24`
\(\dfrac{155}{24}\) = 6. 458 (3)
\(\dfrac{19}{8}-\dfrac{5}{4}+\dfrac{16}{3}\)
\(=\dfrac{57}{24}-\dfrac{30}{24}+\dfrac{128}{24}\)
\(=\dfrac{155}{24}\)
a, 5/11 + 1/2 + 2/5 + 6/11 + 3/4 + 16/25 + 5/16
b,19/4 + 37/100 + 1/8 + 132/25 + 5/2 + 37/12
c, 1313/1313 * 165165/143143 * 424242/151515
d, (121/122 * 123/125 + 127/129) * (1995/1996 * 17/16 - 21/25 : 16/17) * (42/30 * 75/23 - 19/23 * 210/38
a,5/11+1/2+2/5+6/11+3/4+16/25+5/16
b,19/4+37/100+1/8+132/25+5/2+37/12
Mau giúp mình đi mà
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10
2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20
1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19
tính nhanh
1+1+2+2+3+3+4+4+5+5+6+6+7+7+8+9+8+9+10+12+13+14+15+16+17+18+19+20+30+1000000=?
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20=?
Bài 1: Tính nhanh
a, 5/11 + 1/2 + 2/5 + 6/11 + 3/4 + 16/25 + 5/16
b,19/4 + 37/100 + 1/8 + 132/25 + 5/2 + 37/12
c, 1313/1313 * 165165/143143 * 424242/151515
d, (121/122 * 123/125 + 127/129) * (1995/1996 * 17/16 - 21/25 : 16/17) * (42/30 * 75/23 - 19/23 * 210/38)
Tính bằng cách thuật tiện
a,19/35+15/!9+16/35+23/19+4/15+11/15
b,4/17-7/15+13/17-8/15+5/8-7/16
19/17 4/5 9/15 16/5 2/3 13/15 38/8 30/13 15/3 sắp xếp theo thứ tự tăng dần
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19=?