Question

15/16:3/8x3/4=

7/8:2=

(7/12 +5/9x3/8):19/15=

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Answer 1

15/16 x 8/3 x3/4=5

7/8 :2=7/(8 x 2)=7/16

Answer 2

15/16 : 3/8 x 3/4 

= 15/16 x 8/3 x 3/4

= 5/2 x 3/4 

= 15/8

7/8 : 2 

= 7/8 x 1/2

= 7/16

(7/12 + 5/9 x 3/8) : 19/15

= (7/12 + 5/24) x 15/19

= (14/24 + 5/24) x 15/19

= 19/24 x 15/19

= 5/8

Answer 3

\(\frac{15}{16}:\frac{3}{8}\times\frac{3}{4}=\frac{15}{16}\times\frac{3}{8}\times\frac{3}{4}=\frac{15\times3\times3}{16\times8\times4}=\frac{135}{512}\)

\(7:\frac{8}{2}=7\times\frac{2}{8}=7\times\frac{1}{4}=\frac{7}{4}\)

\(\left[\frac{7}{12}+\frac{5}{9}\times\frac{3}{8}\right]:\frac{19}{15}\)

\(=\left[\frac{7}{12}+\frac{5\times3}{9\times8}\right]:\frac{19}{15}\)

\(=\left[\frac{7}{12}+\frac{5\times1}{3\times8}\right]:\frac{19}{15}\)

\(=\left[\frac{7}{12}+\frac{5}{24}\right]:\frac{19}{15}\)

\(=\left[\frac{14}{24}+\frac{5}{24}\right]:\frac{19}{15}\)

\(=\frac{19}{24}:\frac{19}{15}=\frac{19}{24}\times\frac{15}{19}=\frac{19\times15}{24\times19}=\frac{1\times5}{8\times1}=\frac{5}{8}\)

Answer 4

15/16:3/8x3/4

= 15/16x8/3x3/4

=5/2x3/4

=15/8 

b,7/8:2

=7/8:2/1

=7/8.1/2

=7/16

c,(7/12+5/9x3/8):19/15

=(7/12x5/24)x15/19

=35/288x15/19

=525/5472

Answer 5

\(\frac{15}{16}:\frac{3}{8}\times\frac{3}{4}\)

\(=\frac{15}{16}\times\frac{8}{3}\times\frac{3}{4}\)

\(=\frac{5}{2}\times\frac{1}{1}\times\frac{3}{4}\)

\(=\frac{5}{2}\times\frac{3}{4}\)

\(=\frac{15}{8}\)

Answer 6

\(\frac{7}{8}:2\)

\(=\frac{7}{8}\times\frac{1}{2}\)

\(=\frac{7}{16}\)

Answer 7

\(\left(\frac{7}{12}+\frac{5}{9}\times\frac{3}{8}\right):\frac{19}{15}\)

\(=\left(\frac{7}{12}+\frac{5}{3}\times\frac{1}{8}\right)\times\frac{15}{19}\)

\(=\left(\frac{7}{12}+\frac{5}{24}\right)\times\frac{15}{19}\)

\(=\left(\frac{14}{24}+\frac{5}{24}\right)\times\frac{15}{19}\)

\(=\frac{19}{24}\times\frac{15}{19}\)

\(=\frac{1}{8}\times\frac{5}{1}\)

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