a, \(2\frac{5}{12}+x=3\frac{1}{6}\)
=> x = \(3\frac{1}{6}-2\frac{5}{12}\)
x = ( 3 - 2 ) + ( 1/6 - 5/12 )
x = 1 + ( -1/4 ) => x = 3/4
b, 26/35 : x = 2
=> x = 26/35 : 2
=> x = 26/35 . 1/2
=> x = 13/35
c, x -3/5 =11/15
x = 11/15 + 3/5
x= 11/15 + 9/15 => x= 20/15 => x = 4/3
d, \(2\frac{7}{8}.x=1\)
> x = 1 : \(2\frac{7}{8}\) => x = 1: 23/8 => x = 1. 8/23 => x = 8/23
a)
x = 31/6 - 25/12
x = 37/12
b)
x = 26/35 : 2
x = 13/35
c)
x = 11/15 + 3/5
x = 4/3
d)
x = 1 : 27/8
x = 27/8
a ) \(2\frac{5}{12}+x=3\frac{1}{6}\)
\(\frac{29}{12}+x=\frac{19}{6}\)
\(x=\frac{19}{6}-\frac{29}{12}\)
\(x=-\frac{3}{4}\)
b ) \(\frac{26}{35}\div x=2\)
\(x=\frac{26}{35}\div2\)
\(x=\frac{13}{35}\)
c ) \(x-\frac{3}{5}=\frac{11}{15}\)
\(x=\frac{11}{15}+\frac{3}{5}\)
\(x=\frac{4}{3}\)
d ) \(2\frac{7}{8}\times x=1\)
\(\frac{23}{8}\times x=1\)
\(x=1\div\frac{23}{8}\)
\(x=\frac{8}{23}\)
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