so sánh: A= \(\frac{31}{23}-\left[\frac{7}{32}+\frac{8}{2}\right]\) và    B=\(\left[\frac{1}{3}+\frac{12}{67}+\frac{13}{41}\right]-\left[\frac{79}{67}-\frac{28}{41}\right]\)

So sánh:

   A = \(\frac{31}{23}-\left(\frac{7}{32}+\frac{8}{2}\right)\)và B = \(\left(\frac{1}{3}+\frac{12}{67}+\frac{13}{41}\right)-\left(\frac{79}{67}-\frac{28}{41}\right)\)

So sánh : A = \(\frac{31}{23}+\left(\frac{7}{23}+\frac{8}{2}\right)\)và B = \(\left(\frac{1}{3}+\frac{12}{67}+\frac{13}{41}\right)-\left(\frac{79}{67}+\frac{28}{41}\right)\)

so sánh\(A=\frac{31}{13}-\left(\frac{7}{32}+\frac{8}{2}\right)vaB=\left(\frac{1}{3}+\frac{12}{67}+\frac{13}{41}\right)-\left(\frac{79}{67}-\frac{28}{41}\right)\)

\(SO\)\(SÁNH\)

\(A=\frac{31}{23}-\left(\frac{7}{32}+\frac{8}{2}\right)\)VÀ \(B=\left(\frac{1}{3}+\frac{12}{67}+\frac{13}{41}\right)-\left(\frac{79}{67}-\frac{28}{41}\right)\)

Tính nhanh

a) 31/23 - (7/32 + 8/23)

b) 38/45 - (8/45 - 17/51 - 3/11)

c)(1/3 + 12/67 + 13/41) - ( 79/67 - 28/41)

d) 1/5 + -1/6 + 1/7 + -1/8 + 1/9 + 1/8 + -1/7 + 1/6 + -1/5

Tính nhanh

a) 31/23 - (7/32 + 8/23)

b) 38/45 - (8/45 - 17/51 - 3/11)

c)(1/3 + 12/67 + 13/41) - ( 79/67 - 28/41)

d) 1/5 + -1/6 + 1/7 + -1/8 + 1/9 + 1/8 + -1/7 + 1/6 + -1/5

9/10 - 13/75 - 1/6

2/15 - 2/65 - 4/39

31/23 - (7/32 + 8/23)

(1/3+12/67+13/41) - (79/67 - 28/41)

38/45 - (8/45 - 17/51- 3/11)

\(\frac{31}{23}-\left(\frac{7}{32}+\frac{8}{23}\right)+\left(\frac{1}{3}+\frac{12}{67}+\frac{13}{41}\right)-\left(\frac{79}{67}-\frac{28}{41}\right)\)