Question

\(a )\dfrac{ 2}{5 } - x = \dfrac{1 }{4} b)\dfrac{4 }{ 7} - x = \dfrac{ 1}{3} c) \dfrac{7 }{5}- x = \dfrac{2 }{3 } \)

Answer 1

\(a,\dfrac{2}{5}-x=\dfrac{1}{4}\)

\(x=\dfrac{2}{5}-\dfrac{1}{4}\)

\(x=\dfrac{8}{20}-\dfrac{5}{20}\)

\(x=\dfrac{3}{20}\)

\(b,\dfrac{4}{7}-x=\dfrac{1}{3}\)

\(x=\dfrac{4}{7}-\dfrac{1}{3}\)

\(x=\dfrac{12}{21}-\dfrac{7}{21}\)

\(x=\dfrac{5}{21}\)

\(c,\dfrac{7}{5}-x=\dfrac{2}{3}\)

\(x=\dfrac{7}{5}-\dfrac{2}{3}\)

\(x=\dfrac{21}{15}-\dfrac{10}{15}\)

\(x=\dfrac{11}{15}\)

#\(Toru\)

Answer 2

\(a>\)

\(\dfrac{2}{5}-x=\dfrac{1}{4}\)

\(x=\dfrac{2}{5}-\dfrac{1}{4}\)

\(x=\dfrac{3}{20}\)

\(b>\)

\(\dfrac{4}{7}-x=\dfrac{1}{3}\)

\(x=\dfrac{4}{7}-\dfrac{1}{3}\)

\(x=\dfrac{5}{21}\)

\(c>\)

\(\dfrac{7}{5}-x=\dfrac{2}{3}\)

\(x=\dfrac{7}{5}-\dfrac{2}{3}\)

\(x=\dfrac{11}{15}\)