cac ban giai thich ho minh dc khong
phân số tiếp theo là 1/36
vì 1/9=1/3^2; 1/16=1/4^2; 1/25= 1/5^2
ta có vâỵ phân số tiếp theo là 1/6^2=1/36
Dien so thich hop vao cho cham de duoc cac phan so bang nhau:
1/3=....../15=9/.....=...../405
63/....=54/30=...../25
dien dau thich hop vao cho trong 9 3 8 4
Tim chu so thich hop dien vao dau * trong phep tinh sau :
**+**=*97
Khong tinh ket qua hay dien dau >, <, = thich hop vao o trong co giai thich
a) 7/9+11/13+24/25 ... 3
..................................................................................................................................
b)9/8+13/12+15/13+5/4 ... 4
.........................................................................................................................................
Tim mot phan so thich hop de dien vao cho cham trong moi truong hop sau:
a) 2/5<...<4/7 b)1/3<...<1/2
tim cac chu so thich hop dien vao o trong de so 235..... chia het cho 2 ca 3
dien so thich hop vao cho trong : 4/..........=40/210
GIUP MINH VOI MINH DANG CAN GAP
Cho 12.15.18.21..43=122*80240
Hay tim chu so thich hop vao dau *
dien mot so thich hop vao cho cham:
10/18<18/...<10/17
