Question

\(\dfrac{-5}{7}-\dfrac{3}{8}+\dfrac{1}{28}\) 

Answer 1

\(-5/7-3/8+1/28=-59/56\)nhé 

Answer 2

\(=\dfrac{-40}{56}-\dfrac{21}{56}+\dfrac{2}{56}=\dfrac{-59}{56}\)

Answer 3

\(=-\dfrac{5.8}{7.8}-\dfrac{3.7}{8.7}+\dfrac{1.2}{28.2}=\dfrac{-40}{56}-\dfrac{21}{56}+\dfrac{2}{56}=\dfrac{-40-21+2}{56}=\dfrac{-59}{56}\)

Answer 4

\(\dfrac{-5}{7}-\dfrac{3}{8}+\dfrac{1}{28}\)

=\(\dfrac{-61}{56}+\dfrac{1}{28}\)

=\(\dfrac{-61}{56}+\dfrac{2}{56}\)

=\(\dfrac{-59}{56}\)

Answer 5

=−40/56−21/56+2/56=−59/56

Answer 6

= −59/56