Question

Answer 1

\(a,=\dfrac{16}{20}+\dfrac{15}{20}=\dfrac{31}{20}\\ b,=\dfrac{56}{21}+\dfrac{30}{21}=\dfrac{86}{21}\\ c,=\dfrac{72}{40}+\dfrac{25}{40}=\dfrac{97}{40}\\ d,=\dfrac{27}{45}+\dfrac{65}{45}=\dfrac{92}{45}\\ e,=\dfrac{4}{6}+\dfrac{33}{6}=\dfrac{37}{6}\\ f,=\dfrac{45}{20}+\dfrac{17}{20}=\dfrac{62}{20}=\dfrac{31}{10}\)

\(g,=\dfrac{172}{24}+\dfrac{135}{24}=\dfrac{307}{24}\\ h,=\dfrac{25}{45}+\dfrac{21}{45}=\dfrac{46}{45}\)

 

 

 

 

 

 

Answer 2

`4/5 + 3/4 = 16/20 + 15/20 = (16+15)/20= 31/20`

`8/3 + 10/7 = 56/21 + 30/21 = (56+30)/21 = 86/21`

`9/5 + 5/8 = 72/40 + 25/40 = (72+25)/40 = 97/40`

`3/5 + 13/9 = 27/45 + 65/45 = (27+65)/45 = 92/45`

`2/3 + 11/2 = 4/6 + 33/6 = (4+33)/6 = 37/6`

`9/4 + 17/20 = 45/20 + 17/20 = (45+17)/20 = 62/20 = 31/10`

`43/6 + 45/8 = 172/24 + 135/24 = (172+135)/24 = 307/24`

`5/9 + 7/15 = 25/45 + 21/45 = (25+21)/45 = 46/45`

Answer 3

a: =16/20+15/20=31/20

b: =56/21+30/21=86/21

c: =72/40+25/40=97/40

d: =27/45+65/45=92/45

e: =4/6+33/6=37/6

Answer 4

a,\(\dfrac{4}{5}+\dfrac{3}{4}=\dfrac{16}{20}+\dfrac{15}{20}=\dfrac{31}{20}\)

 

b,\(\dfrac{8}{3}+\dfrac{10}{7}=\dfrac{56}{21}+\dfrac{30}{21}=\dfrac{86}{21}\)

 

c,\(\dfrac{9}{5}+\dfrac{5}{8}=\dfrac{72}{40}+\dfrac{25}{40}=\dfrac{97}{40}\)

 

d,\(\dfrac{3}{5}+\dfrac{13}{9}=\dfrac{27}{45}+\dfrac{65}{45}=\dfrac{92}{45}\)

 

e,\(\dfrac{2}{3}+\dfrac{11}{2}=\dfrac{4}{6}+\dfrac{33}{6}=\dfrac{37}{6}\)

 

f,\(\dfrac{9}{4}+\dfrac{17}{20}=\dfrac{45}{20}+\dfrac{17}{20}=\dfrac{62}{20}=\dfrac{31}{10}\)

 

g,\(\dfrac{43}{6}+\dfrac{45}{8}=\dfrac{172}{24}+\dfrac{135}{24}=\dfrac{307}{24}\)

 

h,\(\dfrac{5}{9}+\dfrac{7}{15}=\dfrac{25}{45}+\dfrac{21}{45}=\dfrac{46}{45}\)