Question

tìm y

a) y - 11/3 = 12/5

b) 2 - y = 15/6

c) y × 2  2/3 = 4/9

d) y ÷ 1  2/5 = 21/10

Answer 1

\(a.\)\(y-\frac{11}{3}=\frac{12}{5}\)

\(y=\frac{12}{5}+\frac{11}{3}\)

\(y=\frac{91}{15}\)

\(b.2-y=\frac{15}{6}\)

            \(y=2-\frac{15}{6}\)

           \(y=-\frac{1}{2}\)

\(c.y\times2\frac{2}{3}=\frac{4}{9}\)

 \(y=\frac{4}{9}:2\frac{2}{3}\)

\(y=\frac{1}{6}\)

\(d.y:1\frac{2}{5}=\frac{21}{10}\)

 \(y=\frac{21}{10}\times1\frac{2}{5}\)

 \(y=\frac{147}{5}\)