Các câu hỏi tương tự
tinh bang cach thuan tien nhat a.3/5+4/7+2/5+1/7+2/7 b.1/3+1/6+4/3+2/6+2/3
TINH BANG CACH THUAN TIEN NHAT
1/6 + 1/12 +1/ 20 + 1/30
tinh bang cach thuan tien nhat
1+2+3+4+5+6+7+8+9:9 =
tinh bang cach thuan tien nhat.
M = 1/4 + 1/12 + 1/36 + ... 1/972 + 1/2916
1.Tim hai so le co ti so la 5/7 biet giua chung co 5 mam so chan lien tiep
2.tinh bang cach thuan tien 1/6+1/12+1/20+1/30+1/42
MONG CAC BAN GIUP MINH
Thuc hien phep tinh sau bang cach hop li nhat:
a)5/11+1/2+2/5+6/11+3/4+16/25+5/16
b)19/4+37/100+1/8+132/25+5/2+37/12
tinh bang cach thuan tien:
3/5+4/7+2/5+1/7+2/7=
1+2+3+4++5+6+7+8+9+10+11+12+13+14++15+16+17+18+19+20
Hoi tong tren bang bao nhieu (tinh nhanh va giai thich cach lam)
1 Rút gọn rồi tính
a 2/8+5/6=
b 1/4+6/30=
c 1/8+12/16=
d 12/18+4/3
2/ tính tổng
a 1/3+1/6+1/18
b 1/12+1/6+3/4
c 1/20+1/4+2/5
d 2/3+4/5+7/15