X = 3/4 + 3/28 + 3/70 + .... + 3/208
X = 3/1.4 + 3/4.7 + 3/7.10 + ... + 3/13.16
X = 1 - 1/4 + 1/4 - 1/7 + 1/7 - 1/10 + .... + 1/13 - 1/16
X = 1 - 1/16
X = 15/16
6 × 3/8
Ket qua la phan so nha
Cau nay minh se tik diem cho ai nhanh nhat nha
3- 1/2
Ket qua la phan so nha
Cau nay de nhung minh se cho diem cho bn nao nhanh nhat nha
Tinh tong cua cac phan so bang 28/63 ma co tu va mau deu la so co 3 chu so ai lam nhanh va dung mik tk cho
neu ai khong biet violympic vong 16 la day
cau 1:me hon con 30 tuoi neu cong them vao tuoi me so tuoi cua con thi duoc mot so bang 5/4 so tuoi me :tuoi me la 40 tuoi ,con 10 tuoi
cau 2:3/4 cua 20 m la: 15 m
cau 3:5/6 cua 24 kg la :20 kg
cau 4:neu 5/6 cua q kg la 105 kg thi q la :126
cau 5:neu 3/4 cua t la 186 thi t la :248
cau 6:mot hinh chu nhat co chu vi bang 3 lan chieu dai biet chieu rong bang 20m tinh chieu dai hinh chu nhat : chieu dai hinh chu nhat la 40 m
cau 7:1 chiec thuyen cho 36 thung hang .moi thung hang nang 5/9 ta .hoi chiec thuyen cho bao nhieu tan hang :2 tan
cau 8:8*(28 +22)+(138+362):5=500
cau 9:435 +24:y=500-65+24:3:vay y =3
cau 10: tim so co 4 chu so 1c20 lon nhat chia het cho ca 2;3 va 5 :so do la 1920
chuc cac ban thi tot
Tính nhanh phân số
3\4+3\28+3\70+3\130+3\208
Cau 1 : Co bao nhieu phan so ma tu so va mau so la cac so co 2 chu so va tu so kem mau so 5 don vi ?
Cau 2 : Co bao nhieu so thoa man dieu kien khi cong voi so 3546 thi duoc 1 so co 4 chu so giong nhau ?
Cau 3 : Tim 2 so biet so thu nhat bang \(\frac{3}{4}\)so thu hai . Biet rang neu bot o so thu nhat di 28 don vi thi duoc tong moi la 357 ?
Cau 4 : Tim 2 so biet rang so thu nhat bang \(\frac{2}{5}\) so thu hai . Neu lay so thu nhat cong voi so thu hai roi cong voi tong cua chung thi duoc 168 ?
Cau 5 : Minh do Hanh : Thoi gian tu dau ngay den gio bang\(\frac{3}{5}\) thoi gian tu bay gio den het ngay . Do ban bay gio la may gio ? Em hay giup Hanh giai dap cau do cua Minh .
AI LAM NHANH THI MK SE TICK CHO
GIUP MK VOI NHA
CHO MK CAM ON TRUOC
DAY LA TOAN LOP 4 NANG CAO NHA CAC BAN ^ _ ^
Quy dong mau so cac phan so sau
a 1/ 2,2 / 3 va 3 / 7
b 5 / 6,7 / 9 va 1 /3
giai ho minh nha ai nhanh nhat minh TICK cho
TRUNG BINH CONG CUA BA SO LA 195 , BIET RANG SO THU NHAT LA 127,SO THU 2 HON SO THU 3 LA 28 . TIM SO THU 2 VA SO THU 3
HAY GIAI THAT CHI TIET CHO MIK NHE
MINH SE L-I-K-E CHO BAN NAO CO BAI GIAI DUNG , CHINH XAC AND NHANH NHAT NHE
THANK YOU MOI NGUOI
1,hieu cua 2 so la 13/18 . Neu them vao so tru 1/6 thi hieu 2 so la ?
2, tinh = cach thuan tien nhat :
19/15 + 31/23 - 4/15 - 8/23
3, 1 doi cong nhan sua 1 quang duong . Ngay thu nhat doi sua duoc 3/8 quang duong . Hoi doi cong nhan can phai sua ? phan quang duong ?
Ai giup mik dau tien voi tat ca cac bai toan tren thi se duoc chon va ket bn
