\(\sqrt{\frac{252525}{363636}}=?\)
tính
\(70\left(\frac{252525}{565656}+\frac{252525}{727272}+\frac{252525}{909090}\right)\)
\(70.\left(\frac{252525}{565656}+\frac{252525}{727272}+\frac{252525}{909090}\right)\)
\(=70.\left(\frac{25}{56}+\frac{25}{72}+\frac{25}{90}\right)\)
\(=70.25.\left(\frac{1}{7.8}+\frac{1}{8.9}+\frac{1}{9.10}\right)\)
\(=1750.\left(\frac{1}{7}-\frac{1}{8}+\frac{1}{8}-\frac{1}{9}+\frac{1}{9}-\frac{1}{10}\right)\)
\(=1750.\left(\frac{1}{7}-\frac{1}{10}\right)\)
\(=1750.\frac{3}{70}\)
\(=75\)
Tính :
\(=70.\left(\frac{25}{56}+\frac{25}{72}+\frac{25}{90}\right)\)
=\(70.\frac{15}{14}\)
=75
knha
\(\frac{121212}{363636}\)=?
Tính nhanh
27*(\(\frac{171717}{272727}\)+\(\frac{373737}{363636}\))
27 x \(\left(\frac{171717}{272727}+\frac{373737}{363636}\right)\)
= 27 x \(\left(\frac{17}{27}+\frac{37}{36}\right)\)
= 27 x \(\frac{17}{27}\)+ 27 x \(\frac{37}{36}\)
= 17 + 27,75
= 44,75
\(27\times\left(\frac{171717}{272727}+\frac{373737}{363636}\right)\)
\(=27\times\left(\frac{17}{27}+\frac{37}{36}\right)\)
\(=27\times\frac{17}{27}+27\times\frac{37}{36}\)
\(=17+\frac{111}{4}\)
\(=\frac{179}{4}\)
> Chúc bạn học tốt <
Rút gọn phân số sau
\(\frac{151515}{363636}\)\(\frac{135135135}{162162162}\)
151515/363636 = 15. 10101 / 36 . 10101 = 15 / 36 = 5/12
135135135 / 162162162 = 135 . 1001001 / 162 . 1001001 = 135 / 162 = 5/6
151515/363636 = 5/12
135135135/162162162 = 5/6
151515 / 363636 = 5 / 12
135135135 / 162162162 = 5 / 6
mình ko viết được phân số thông cảm
\(\frac{121212+12121212-1212}{363636+36363636-3636}\)
tính nhanh
\(\frac{121212+12121212-1212}{363636-36363636-3636}=\frac{12\left(111111+11111111-1111\right)}{36\left(111111+11111111-1111\right)}=\frac{12}{36}=\frac{1}{3}\)
\(\frac{1}{3}\)
chúc ban hk tốt!!(k cho tui nhé)
So sánh: \(\frac{252525}{373737}và\frac{272727}{353535}\)
\(\frac{252525}{373737}=\frac{252525:10101}{373737:10101}=\frac{25}{37}\)
\(\frac{272727}{353535}=\frac{272727:10101}{353535:10101}=\frac{27}{35}>\frac{27}{37}>\frac{25}{37}\)
vậy \(\frac{252525}{373737}
\(\frac{252525}{373737}=\frac{25.10101}{37.10101}=\frac{25}{37}=\frac{875}{1295}\)
\(\frac{272727}{353535}=\frac{27.10101}{35.10101}=\frac{27}{35}=\frac{999}{1295}\)
Vì \(\frac{875}{1295}
\(\frac{252525}{373737}=\frac{252525:10101}{373737:10101}=\frac{25}{37};\frac{272727}{353535}=\frac{272727:10101}{353535:10101}=\frac{27}{35}\)
=>25/37<27/35
Rút gọn phân số :
\(\frac{121212}{363636}\)
1/3 nha ban ghet con trai nen cu cho co gai nha
rút gọn phân số :
121212/363636 = 3
Tính bằng cách hợp lý:
Tính B=\(\frac{48+\frac{34}{31}-\frac{34}{33}+\frac{34}{35}}{72+\frac{51}{31}-\frac{51}{33}+\frac{51}{35}}:\frac{-242423}{363636}\)
Rút gọn p/s :
\(\frac{121212}{363636}\)
121212/363636
rút gọn nhanh nhất là :
121212 : 121212 = 1
363636 : 121212 = 3
Vậy phân số tối giản là 1/3
121212/363636 = 12/36 = 4/9
Ai làm nhanh nhất được tích nha bạn
Ta có: \(\frac{121212}{363636}=\frac{121212\div121212}{363636\div121212}=\frac{1}{3}\)