Question

(-7/12 + 5/8) - (-3/8 + 5/12)=

giải các bước hộ mình

 

Answer 1

\(\left(-\dfrac{7}{12}+\dfrac{5}{8}\right)-\left(-\dfrac{3}{8}+\dfrac{5}{12}\right)\)

\(=-\dfrac{7}{12}+\dfrac{5}{8}-\left(-\dfrac{3}{8}\right)-\dfrac{5}{12}\)

\(=\left(-\dfrac{7}{12}-\dfrac{5}{12}\right)+\left(\dfrac{5}{8}+\dfrac{3}{8}\right)\)

\(=-1+1=0\)

Answer 2

\(\left(-\dfrac{7}{12}+\dfrac{5}{8}\right)-\left(-\dfrac{3}{8}+\dfrac{5}{12}\right)\)

\(=-\dfrac{7}{12}+\dfrac{5}{8}+\dfrac{3}{8}-\dfrac{5}{12}\)

\(=\left(-\dfrac{7}{12}-\dfrac{5}{12}\right)+\left(\dfrac{5}{8}+\dfrac{3}{8}\right)\)

\(=-\dfrac{12}{12}+\dfrac{8}{8}\)

\(=-1+1\)

\(=0\)

Answer 3

( -7/12 + 5/8 ) - (- 3/8 + 5/12 )

= -7/12 + 5/8 + 3/8 - 5/12

= ( -7/12 + 5/12 ) + ( 5/8 + 3/8 )

= -1/6 + 1

= 5/6.

Answer 4

0