Các câu hỏi tương tự
Tính tổng: 1/7+1/91+1/247+1/475+1/755+1/1147+?
1/7+1/91+1/247+1/475+1/755+1/1147
Tính tổng :
\(\frac{1}{7}+\frac{1}{91}+\frac{1}{247}+\frac{1}{475}+\frac{1}{755}+\frac{1}{1147}\)
tính tổng sau
a, 1/7+1/91+1/247+1/475+1/775+1/1147
b, 3/5x8+11/8x9+12/19x31+70/31x101+99/101x200
Bài 1 : TÍnh Tổng
\(\frac{1}{7}+\frac{1}{91}+\frac{1}{247}+\frac{1}{475}+\frac{1}{775}+\frac{1}{1147}\)
tính D = 1/7 + 1/91 + 1/247 + 1/475 + 1/775 + 1/1147
\(\dfrac{1}{7}+\dfrac{1}{91}+\dfrac{1}{247}+\dfrac{1}{475}+\dfrac{1}{775}+\dfrac{1}{1147}\)
Tính
1\7+1\91+1\247+1\475+1\775+1\1147
tìm x biết :
x*2/25=1/7+1/91+1/247+1/475