Các câu hỏi tương tự
Tính nhanh:3/2+7/6+13/12+21/20+31/30+43/42+57/56+73/72
TÌm x biết : 2x +7/6+13/12+21/20+31/30+43/42+57/56+73/72+91/90 = 0
tìm x
2x +7/6+13/12+21/20+31/30+43/42+57/56+73/72+91/90=10
Tìm x , biết :
b> 2x + 7/6 + 13/12 + 21/20 + 31/30 + 43/42 + 57/56 + 73/72 + 91/90 = 10
Tìm x : \(2x+\frac{7}{6}+\frac{13}{12}+\frac{21}{20}+\frac{31}{30}+\frac{43}{42}+\frac{57}{56}+\frac{73}{72}+\frac{91}{90}=10\)10
M = 13/12+ 21/20+31/30+43/42+57/56+73/72
Tìm x,y biết:
a) 1/5.8+1/8.11+1/11.14+...+1/y(y+3).=98/1545
b) 2x+7/6+13/12+21/20+31/30+43/42+57/56+73/72+91/90 = 0
tìm x biết \(2x+\frac{7}{6}+\frac{13}{12}+\frac{21}{20}+\frac{31}{30}+\frac{43}{42}+\frac{57}{56}+\frac{73}{72}+\frac{91}{90}=10\)
1.Tìm x, biết: x+13/12+21/20+31/30+43/42+57/56+73/72+91/90=277/30