Question

Answer 1

a.\(\dfrac{59}{65}\)

 

b.\(\dfrac{11}{10}\)

c.\(\dfrac{3}{8}\)

d.\(\dfrac{9}{20}\)

Answer 2

=35/56+24/56

=59/56

=30/20-8/20

=22/20=11/10

=3/8

=3/4x3/5=9/20

Answer 3

\(a.\dfrac{5}{8}+\dfrac{3}{7}=\dfrac{35}{56}+\dfrac{24}{56}=\dfrac{59}{56}\)

\(b.\dfrac{6}{4}-\dfrac{2}{3}=\dfrac{3}{2}-\dfrac{2}{3}=\dfrac{9}{6}-\dfrac{4}{6}=\dfrac{5}{6}\)

\(c.\dfrac{3}{5}\times\dfrac{5}{8}=\dfrac{15}{40}=\dfrac{3}{8}\)

\(d.\dfrac{3}{4}:\dfrac{5}{3}=\dfrac{3}{4}\times\dfrac{3}{5}=\dfrac{9}{20}\)

Answer 4

a,\(\dfrac{5}{8}+\dfrac{3}{7}=\dfrac{35}{56}+\dfrac{24}{56}=\dfrac{59}{56}\)

b,\(\dfrac{6}{4}-\dfrac{2}{5}=\dfrac{30}{20}-\dfrac{8}{20}=\dfrac{22}{20}=\dfrac{11}{10}\)

c,\(\dfrac{3}{5}x\dfrac{5}{8}=\dfrac{3}{8}\)

d,\(\dfrac{3}{4}:\dfrac{5}{3}=\dfrac{3}{4}x\dfrac{3}{5}=\dfrac{9}{20}\)

Answer 5

de bai 

Answer 6

5/8 + 3/7 =35/56 + 24/56 = 59/56

6/4-2/5 = 30/20-8/20= 22/20

3/5 x 5/8 = 15/40

3/4 : 5/3 = 9/20