Question

C1: Tính

a,\(\dfrac{7}{8}+\dfrac{10}{16}\)

b,\(\dfrac{12}{4}+\dfrac{6}{5}\)

c,\(\dfrac{23}{9}x\dfrac{4}{7}\)

d,\(\dfrac{8}{9}:\dfrac{6}{4}\)

Answer 1

14/16 + 10/16 = 24/16 =3/2

21/5

92/63

16/27

Answer 2

\(\dfrac{14+10}{16}=\dfrac{24}{16}\)

\(\dfrac{60+24}{20}=\dfrac{84}{20}\)

\(\dfrac{92}{63}\)

\(\dfrac{32}{54}\)

Answer 3

a.3/2

b.21/5

c.92/63

d.16/27

Answer 4

a , 7/8 + 10 /16 = 14/16 + 10/16 = 24/16 = 3/2

b, 12/4 + 6/5 = 60/20 + 24/20 = 84/20 = 21/5

c, 23/9 x 4/7 = 92/63

d, 8/9 : 6/4 = 4/9