Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
\(\frac{8}{15}+\frac{16}{30}+\frac{3}{5}+\frac{9}{10}+2\frac{3}{5}\)
\(=\frac{8}{15}+\frac{16}{30}+\frac{3}{5}+\frac{9}{10}+\frac{13}{5}\)
\(=\frac{16+16+18+27+78}{30}\)
\(=\frac{155}{30}\)
\(=\frac{31}{6}\)
Hc tốt #
\(\frac{8}{15}\)+\(\frac{16}{30}\)+\(\frac{3}{5}\)+\(\frac{9}{10}\)+2\(\frac{3}{5}\)
=\(\frac{16}{30}\)+\(\frac{16}{30}\)+\(\frac{18}{30}\)+\(\frac{27}{30}\)+\(\frac{13}{5}\)
=\(\frac{16+16+18+27}{30}\)+\(\frac{78}{30}\)
=\(\frac{77}{30}\)+\(\frac{78}{30}\)= \(\frac{155}{30}\)
\(\frac{62}{36}+\frac{32}{36}=\frac{47}{18}\)
\(\frac{34}{54}+\frac{43}{54}=\frac{77}{54}\)
62/36+32/36=94/36
34/54+43/54=77/54
Dấu / thay cho dấu ngang phân số nha
Học tốt nhé! ^_^
k mik nha
1/3x-2/5(x+1)=0
1/3x-2/5x-2/5=0
-1/15x-2/5=0
-1/15x=6/15
x=-6
\(\frac{5}{6}\)+\(\frac{7}{6}\)=\(\frac{12}{6}\)=2
ai k mk k cho 3 k
\(\frac{5}{6}\)+\(\frac{7}{6}\)=\(\frac{12}{6}\)=2
ai k mk k cho 3 k
\(\frac{56}{78}\)\(=\)\(\frac{56.27}{78.27}\)\(=\)\(\frac{1512}{2106}\)
\(\frac{43}{27}\)\(=\)\(\frac{43.78}{27.78}\)\(=\)\(\frac{3354}{2106}\)
\(D\text{ấu}\)\(ch\text{ấm}\)\(ngh\text{ĩa}\)\(l\text{à}\)\(d\text{ấu}\)\(nh\text{â}n\).
tk nha bạn !
Mẫu số chung là 78x27=2106
\(\frac{56}{78}=\frac{56x27}{78x27}=\frac{1512}{2106}\)
\(\frac{43}{27}=\frac{43x78}{27x78}=\frac{3354}{2106}\)
\(\frac{43}{82}:\frac{5}{3}=\frac{43}{82}x\frac{3}{5}=\frac{129}{410}\)
\(\frac{192}{410}\)