Question

tính :

a) 197148:84=

101598:287=

b)9/20-8/5x5/12= 

2/3:4/5:7/12=

4/9+11/8-5/6=

Answer 1

a) 197148:84=2347

101598:287=354

b)9/20-8/5x5/12= -13/60

2/3:4/5:7/12=10/7

4/9+11/8-5/6=71/72

Answer 2

tính :

a) 197148:84=2347

101598:287=354

b)9/20-8/5x5/12= -13/60

2/3:4/5:7/12=10/7

=4/9+11/8-5/6=71/72

Answer 3

nhầm cau 1 phần b là 9/20-8/15x5/12=

Answer 4

197148:84=2347

101598:287=354

B.9/20-8/5x5/12=-13/60 ( cái này mk ko chắc)

4/9+11/8-5/6=71/72

Answer 5

a) \(197148:84=2347\)

    \(101598:287=354\)

b) \(\frac{9}{20}-\frac{8}{5}.\frac{5}{12}\)

\(=\frac{9}{20}-\frac{2}{3}\)

\(=-\frac{13}{60}\)

   \(\frac{2}{3}:\frac{4}{5}:\frac{7}{12}\)

\(=\frac{2}{3}.\frac{5}{4}.\frac{12}{7}\)

\(=\frac{2.5.12}{3.4.7}\)

\(=\frac{2.5}{7}\)

\(=\frac{10}{7}\)

   \(\frac{4}{9}+\frac{11}{8}-\frac{5}{6}\)

\(=\frac{32}{72}+\frac{99}{72}-\frac{60}{72}\)

\(=\frac{32+99-60}{72}\)

\(=\frac{71}{72}\)

_Chúc bạn học tốt_