Question

tính nhanh nếu có thể

(-1,32- 23/7) - ( 6,68 + 5/8 - 2/7)

ai nhanh cho 3 tk

Answer 1

(-1,32- 23/7) - ( 6,68 + 5/8 - 2/7)

=\(\frac{-806}{175}\)- \(\frac{8877}{1400}\)

=\(\frac{-613}{56}\)

Answer 2

(-1/32 - 23/7) - (6,68 + 5/8 - 2/7)

= -1,32 - 23/7 - 6,68 - 5/8 + 2/7

= (-1,32 - 6,68) - (23/7 - 2/7) - 5/8

= -8 - 3 - 5/8

= -11 - 5/8

= -93/8

Answer 3

Ta có : \(-\frac{132}{100}-\frac{23}{7}-\frac{668}{100}+\frac{5}{8}\)\(+\frac{2}{7}\)

\(=\frac{-33}{25}-\frac{23}{7}-\frac{167}{25}-\frac{5}{8}\)\(+\frac{2}{7}\)

\(=\frac{-33}{25}-\frac{167}{25}-\frac{23}{7}+\frac{2}{7}-\frac{5}{8}\)

\(=\frac{-200}{25}-\frac{21}{7}-\frac{5}{8}\)

\(=-8-3-\frac{5}{8}\)

\(=-\frac{93}{8}\)