Cho phan so a/b
a, =45/54 va UCLN= 12
Những câu hỏi liên quan
cho phan so a/b co gia tri la 12/54 va ucln (a,b)=12 voi a,b thuoc N
Tim phan so a/b thoa man:
Phan so a/b=45/100 va UCLN(a,b)=13
tim phan so \(\frac{a}{b}\)phan so \(\frac{45}{125}\)va UCLN(a;b)=11
tim \(\frac{a}{b}\)
Ta co : a/b = 45/125 = 9/25
=> a/b = 9.k/25.k
Vi 9/25 la phan so toi gian
=>k=UCLN(a,b)=11
=>k=11
=>a/b = 9.11/25.11 = 99/275
NHỚ TICK CHO MK NHÉ!
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Rut gon phan so roi so sanh cac phan so
A,16 phan 20 va 9 phan 15
B,6 phan 8 va 3 phan 12
C, 15 phan 25 va 36 phan 45
Loi giai cu the nhe cac ban
a)\(\frac{16}{20}=\frac{4}{5};\frac{9}{15}=\frac{3}{5}\)
Vì 4>3\(\Rightarrow\frac{4}{5}>\frac{3}{5}\) hay \(\frac{16}{20}>\frac{9}{15}\)
Vậy \(\frac{16}{20}>\frac{9}{15}\)
b) \(\frac{6}{8}=\frac{3}{4};\frac{3}{12}=\frac{1}{4}\)
Vì 3>1 \(\Rightarrow\frac{3}{4}>\frac{1}{4}\) hay \(\frac{6}{8}=\frac{3}{12}\)
Vậy \(\frac{6}{8}=\frac{3}{12}\)
c) \(\frac{15}{25}=\frac{3}{5};\frac{36}{45}=\frac{4}{5}\)
Vì 3<4 \(\Rightarrow\frac{3}{5}<\frac{4}{5}\) hay \(\frac{15}{25}<\frac{36}{45}\)
Vậy \(\frac{15}{25}<\frac{36}{45}\)
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minh khong biet dap an cua cau hoi nay
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1so sanh phan so 12/25 va 25/49 80/95 va 144/1536 tinh gia tri bieu thucphanso1phan 72+1phan56+1 phan 42+ 1phan 30 +1phan 20 + 1phan 127tinh nhanh phan so17 phan 12+ 9phan 7-(2phan7 -7phan 12)11phan7 nhan (38 phan 45 nhan 17 phan 11 )(1+1phan2 ) nhan (1+1phan3 ) nhan ....... nhan (1+1phan20059 cho phan so 25phan 42 tim so tu nhien a sao cho khi them vao tu so cua phan so da cho va giu nguyen mau so thi duoc phan so moi bang 6phan 7
Đọc tiếp
1so sanh phan so
12/25 va 25/49 80/95 va 144/153
6 tinh gia tri bieu thucphanso
1phan 72+1phan56+1 phan 42+ 1phan 30 +1phan 20 + 1phan 12
7tinh nhanh phan so
17 phan 12+ 9phan 7-(2phan7 -7phan 12)
11phan7 nhan (38 phan 45 nhan 17 phan 11 )
(1+1phan2 ) nhan (1+1phan3 ) nhan ....... nhan (1+1phan2005
9 cho phan so 25phan 42 tim so tu nhien a sao cho khi them vao tu so cua phan so da cho va giu nguyen mau so thi duoc phan so moi bang 6phan 7
rut gon roi quy dong va phan so
34 phan 5i va 38 phan 95 msc
54 phan 36 va 26 phan 39 msc
42 phan 28 va 27 phan 45 msc
33 phan 25 va 25 phan 75 msc
21 phan 35 va 18 phan 24 msc
33 phan 77 va 25 phan 75
thế nào vậy Lê Trâm Anh?
ko chi thi thoi
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Tim so tu nhien a va b sao cho
a . b = 24300 va UCLN ( a,b ) = 45
rut gon roi so sanh hai phan so
18/72 va15/20
24/36 va 20/50
5/6 va 45/54
a 1/4 va 1/2
1/4<1/2
2/3>2/5
5/6=45/54(5/6)
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1,tim 2 so tu nhien biet tong chung = 66 UCLN=6 co 1 so chia het cho 5
2,tim 2 so tu nhien biet hieu chung = 84 UCLN = 12
3,tim 2 so tu nhien biet tich = 864 UCLN=6
4,cho 3n+1 va 5n+4 la 2 so nguyen to cung nhau tim UCLN cua 3n+1 va 5n+4
5,cho a=123456789;b=987654321 . Tim UCLN cua a va b