Question

a) -3/4 . 12/-5 . (-25/6)

b) (11/12 : 33/16) .3/5

c) (-2) . -38/21 . -7/4 . (-3/8)

d) 7/23 . [ ( -8/6) - 45/18 ]

Answer 1

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Answer 2

a)  -15/2

b) 4/15

c) 19/8

d) -7/6

Answer 3

\(a.\)

\(-\frac{3}{4}.\frac{12}{-5}.\left(-\frac{25}{6}\right)\)

\(=\frac{9}{5}.\left(-\frac{25}{6}\right)\)

\(=-\frac{15}{2}\)

\(b.\)

\(\left(\frac{11}{12}:\frac{33}{16}\right).\frac{3}{5}\)

\(=\left(\frac{11}{12}.\frac{16}{33}\right).\frac{3}{5}\)

\(=\frac{4}{9}.\frac{3}{5}=\frac{4}{15}\)

\(c.\)

\(\left(-2\right).\frac{-38}{21}.\frac{-7}{4}.\left(\frac{-3}{8}\right)\)

\(=\frac{76}{21}.-\frac{7}{4}.\left(-\frac{3}{8}\right)\)

\(=-\frac{19}{3}.\left(-\frac{3}{8}\right)\)

\(=\frac{19}{8}\)

\(d.\)

\(\frac{7}{23}.\left[\left(-\frac{8}{6}\right)-\frac{45}{18}\right]\)

\(=\frac{7}{23}.\left(-\frac{23}{6}\right)\)

\(=-\frac{7}{6}\)