BAI1
A,
TU DANG THUC 2.3= 1.6 , TA CO THE LAP DC CAC CAP PHAN SO BANG NHAU NAO?
B, HAY LAP CAC CAP PHAN SO BANG NHAU TU DANG THUC 3.4= 6.2
AI NHANH MINH KB NHE
tu dang thuc 2.3=1.6 ta co the lap duc cac cap phan so bang nhau
kho qua kho qua ?..........................................
tu dang thuc 2.3=1.6 em hay viet cac cap phan so bang nhau
Từ đẳng thức: 2 . 3 = 1 . 6 ta viết được các cặp phân số bằng nhau là:
\(\dfrac{2}{1}=\dfrac{6}{3};\dfrac{1}{2}=\dfrac{3}{6};\dfrac{1}{3}=\dfrac{2}{6};\dfrac{3}{1}=\dfrac{6}{2}\)
tu dang thuc 2.3=1.6 em hay viet cac cap phan so bang nhau
\(\dfrac{2}{1}=\dfrac{6}{3}\)
\(\dfrac{1}{2}=\dfrac{3}{6}\)
\(\dfrac{3}{1}=\dfrac{6}{2}\)
\(\dfrac{1}{3}=\dfrac{2}{6}\)
lap cac cap phan so bang nhau tu bon trong nam so sau: 3;9;27;81;243
MINH DANG RAT CAN
1 ) \(\frac{3}{9}=\frac{9}{27}=\frac{27}{81}=\frac{81}{243}\)
2) \(\frac{9}{3}=\frac{27}{9}=\frac{81}{27}=\frac{243}{81}\)
3) \(\frac{3}{27}=\frac{9}{81}=\frac{27}{243}\)
4) \(\frac{27}{3}=\frac{81}{9}=\frac{243}{27}\)
tk mình nha bạn
Bai 1:Tim tat ca cac phan so bang phan so 34/51 co mau so tu nhien nho hon 13.
Bai 2:Tim va lap cac cap phan so bang nhau ma tu va mau dung 4 trong 5 so:2;4;8;16;32.
Lap cac cap phan so bang nhau tu bon trong nam so sau
-3;-9;27;81;243
LAP CAC CAP PHAN SO BANG NHAU TU 4 TRONG 5 SO SAU
2,4,8,16,32
\(\frac{2}{4}=\frac{8}{16},\frac{4}{16}=\frac{8}{32}\)
Tu nam so 2;4;6;18;32 ta co dang thuc:
2.16=4.8 (1)
2.32=4.16 (2)
4.32=8.16 (3)
Tu (1) ta lap duoc:2/4=8/16; 2/8=4/16;16/8=4/2;16/4=8/2
tu (2)...................:2/4=16/32;2/16=4/32;32/16=4/2;32/4=16/2
tu (3)....................:4/8=16/32'4/16=8/32;32/8=16/4;32/16=8/4
Lap cac cap phan so bang nhau tu 4 trong 6 so sau :
-2 ;-4;8;24;-6;12
lap cac phan so bang nhau tu cac so sau2,3,-6,-4 ,-9