19/140;-21/140;-50/140
5/21;-3/28;-5/12
chưa xong y b
Các câu hỏi tương tự
Quy dong cac phan so sau
a)\(\frac{9}{70}\);\(\frac{3}{-20}\);\(\frac{-15}{14}\)
b)\(\frac{10}{42}\);\(\frac{-3}{28}\);\(\frac{55}{-132}\)
Quy đồng
a) \(\frac{-5}{14},\frac{3}{20},\frac{9}{70}\)
b) \(\frac{10}{42},\frac{-3}{28},\frac{-55}{132}\)
c) \(\frac{7}{10},\frac{1}{33}\)
Quy đồng mẫu các sốa, frac{17}{320}và frac{-9}{80}b, frac{-7}{10}và frac{1}{33}c, frac{-5}{14},frac{3}{20}và frac{9}{70}d, frac{10}{42}, frac{-3}{28}và frac{-55}{132}
Đọc tiếp
Quy đồng mẫu các số
a, \(\frac{17}{320}\)và \(\frac{-9}{80}\)
b, \(\frac{-7}{10}\)và \(\frac{1}{33}\)
c, \(\frac{-5}{14}\),\(\frac{3}{20}\)và \(\frac{9}{70}\)
d, \(\frac{10}{42}\), \(\frac{-3}{28}\)và \(\frac{-55}{132}\)
Khong dung may tinh bo tui .Rut gon roi quy dong cac phan so sau
a)\(\frac{17}{20},\frac{13}{15}va\frac{41}{60}\)
b)\(\frac{25}{75},\frac{17}{34}va\frac{121}{132}\)
tim n de cac cac phan so sau la phan so toi gian
\(\frac{n+7}{3};\frac{n+8}{4};\frac{n+9}{5};\frac{n+10}{6};\frac{n+11}{7}\)
bai 1 : Quy dong mau cac phan so sau frac{-5}{80};frac{7}{16};frac{-9}{20}bai 2 rut gon roi quy dong mau cac phan so saufrac{-54}{90};frac{-180}{288};frac{60}{-135} ai tra loi nhanh nhat mik se tik cho 4 cai
Đọc tiếp
bai 1 : Quy dong mau cac phan so sau
\(\frac{-5}{80}\);\(\frac{7}{16}\);\(\frac{-9}{20}\)
bai 2 rut gon roi quy dong mau cac phan so sau
\(\frac{-54}{90}\);\(\frac{-180}{288}\);\(\frac{60}{-135}\)
ai tra loi nhanh nhat mik se tik cho 4 cai
Quy dong cac phan so sau
\(\frac{4.3+3.7}{6.5+9}\)va\(\frac{6.9-2.17}{3.63-119}\)
Chon cau tra loi dung: Phan so nho nhat trong cac phan so sau day la phan so nao?
\(\frac{5}{-3};\frac{7}{-3};\frac{8}{-3};\frac{10}{-3}\)
Quy dong cac phan so sau
\(\frac{4.3+3.7}{6.5+9}\)va \(\frac{6.9-2.17}{3.63-119}\)