viet moi phan so sau thanh tong cac phan so co tu so bang 1 va mau so khac nhau
5/6 7/12 8/15 17/24
giai tri tiet bai toan
Viet moi phan so sau thanh tong cac phan so co tu so bang 1 va mau so khac nhau :5/6 ;7/12 ;8/15 ;17/24 giup toi giai toan that nhanh
5/6 = 1/2 + 1/3
7/12 = 1/3 + 1/4
8/15 = 1/3 + 1/5
17/24 = câu này mik suy nghĩ chưa ra
A)Viet 5 phan so bé Hon 1,co Mau so la 7 va co tu so lon hon 0:
B)Viet 5 phan so lon hon 1 va co mau so la 5:
C)Viet 5 phan so bang phan so tam phan muoi hai :
D)Viet cac phan so khac 0 co tong cua tu so va mau so bang 7:
E)Hai phan so lon hon 1 co mau so bang 7 la :
G)Hai phan so bang 1 la:
H)Khoanh vao cac phan so bang ba muoi sau phan nam tu: Hai phan ba; sau phan muoi nam;tam phan muoi hai;muoi phan muoi nam
Giai ho minh bai toan nay nhe !Minh dang can bai toan nay trong ngay hom nay.
A LÀ 1/7,2/7,3/7,4/7,5/7
B LÀ 10/5,9/5,8/5,7/5,6/5
C LÀ 2/5,16/20,24/30,32/40,40/50
D LÀ 1/6,2/5,3/4,2/5/1/6
Ch0 em lam toan va tiêng viêt
viet moi phan so sau day thanh tong cua ba phan so co tu so la 1 va mau so khac nhau : 7/8 ;11/12 ; 14/24
\(\frac{7}{8}=\frac{1}{8}+\frac{6}{8}=\frac{1}{8}+\frac{2}{8}+\frac{4}{8}=\frac{1}{8}+\frac{1}{4}+\frac{1}{2}\)
\(\frac{11}{12}=\frac{1}{12}+\frac{10}{12}=\frac{1}{12}+\frac{4}{12}+\frac{6}{12}=\frac{1}{12}+\frac{1}{3}+\frac{1}{2}\)
\(\frac{14}{24}=\frac{7}{12}=\frac{1}{12}+\frac{6}{12}=\frac{1}{12}+\frac{4}{12}+\frac{2}{12}=\frac{1}{12}+\frac{1}{3}+\frac{1}{6}\)
OK ban nhe
viet cac phan so sau thanh tong cac phan so sau co tu so bang 1 va mau so khac nhau:13/35;11/16;7/18;15/24
\(\frac{13}{35}=\frac{7}{35}+\frac{5}{35}+\frac{1}{35}=\frac{1}{5}+\frac{1}{7}+\frac{1}{35}\)
\(\frac{11}{16}=\frac{8}{16}+\frac{2}{16}+\frac{1}{16}=\frac{1}{2}+\frac{1}{8}+\frac{1}{16}\)
\(\frac{7}{18}=\frac{6}{18}+\frac{1}{18}=\frac{1}{3}+\frac{1}{18}\)
\(\frac{15}{24}=\frac{12}{24}+\frac{3}{24}=\frac{1}{2}+\frac{1}{8}\)
hay viet phan so 31/32 thanh tong cua cac phan so co tu bang 1 va mau khac nhau
Tổng đó là: \(\frac{1}{1.2}+\frac{1}{2.3}+\frac{1}{3.4}+\frac{1}{4.5}+...+\frac{1}{31.32}\)
31/32 = 1/32 + 30/32
= 1/32 + 15/16
= 1/32 + 7/16 + 8/16
= 1/32 + 7/16 + 1/2
= 1/32 + 1/2 + 5/16 + 2/16
= 1/32 + 1/2 + 5/16 + 1/8
= 1/32 + 1/2 + 1/8 + 1/16 + 4/16
= 1/32 + 1/2 + 1/8 + 1/16 + 1/4
cho phan so 25/42 . tim so tu nhien sao cho khi them vao tu so cua phan so da cho va giu nguyen mau so thi dc phan so moi bang 6/7
giai tri tiet bai toan
tử số sau khi thêm là
42 : 7 x 6 = 36
số đó là
36 - 25 =11
tử số sau khi thêm là
42 : 7 x 6 = 36
số đó là
36 - 25 =11
tim 1 phan so biet neu them 19 don vi vao tu so ta duoc phan so moi co gia tri bang mot va biet tong cua tu so va mau so cua phan so do bang 12
ban nao giai ca bai toan ra giup minh tich nha tick that nhieu luon minh hua
viet moi phan so sau thanh tong 3 phan so co tu so la1 nhung mau so khac nhau : 11/12 , 107/210
cac ban giup minh voi
minh dang can gap
TIM MOT PHAN SO BIET NEU CHUYEN 8 DON VI TU MAU SO LEN TU SO TA DUOC PHAN SO MOI CO GIA TRI BANG 1 VA TONG CUA TU SO VA MAU SO BANG 186 . VAY PHAN SO DO LA .....