Question

a) ¾+ 6/8 = b) 7/8+ 10/4= c) 24/4+ 6/8=
d) 15/2 - ¾ = e) 20/8 – 2/2 = f) 16/4 – 6/8 =
g) 12/4 x 6/2 = h) 15/2 x 4/10 = i) 25/4 x 3/6 =
j) 4/2 ÷ 16/2 = k) 25/4 ÷ 12/2= l) 13/4 ÷ 6/8 =

Answer 1

Explicación paso a paso:

a) ¾+ 6/8 =

$\frac{3}{4} + \frac{6}{8}=\frac{(3)(2) +(6)(1) }{8} =\frac{6+6}{8} =\frac{12}{8} =\frac{3}{2}$

b) 7/8+ 10/4=

$\frac{7}{8} + \frac{10}{4}=\frac{(7)(1) +(10)(2) }{8} =\frac{7+20}{8} =\frac{27}{8}$

c) 24/4+ 6/8=

$\frac{24}{4} + \frac{6}{8}=\frac{(24)(2) +(6)(1) }{8} =\frac{48+6}{8} =\frac{54}{8} =\frac{27}{4}$

d) 15/2 - ¾ =

$\frac{15}{2} - \frac{3}{4}=\frac{(15)(2) -(3)(1) }{4} =\frac{30-3}{4} =\frac{27}{4}$

e) 20/8 – 2/2 =

$\frac{20}{8} - \frac{2}{2}=\frac{(20)(1) -(2)(4) }{8} =\frac{20-8}{8} =\frac{12}{8} =\frac{3}{2}$

f) 16/4 – 6/8 =

$\frac{16}{4} - \frac{6}{8}=\frac{(16)(2) -(6)(1) }{8} =\frac{32-6}{8} =\frac{26}{8} =\frac{13}{4}$

g) 12/4 x 6/2 =

$\frac{12}{4}\times \frac{6}{2}=\frac{12 \times 6}{4 \times 2}=\frac{72}{8} =9$

h) 15/2 x 4/10 =

$\frac{15}{2}\times \frac{4}{10}=\frac{15 \times 4}{2 \times 10}=\frac{60}{20} =3$

i) 25/4 x 3/6 =

$\frac{25}{4}\times \frac{3}{6}=\frac{25 \times 3}{4 \times 6}=\frac{75}{24} =\frac{25}{8}$

j) 4/2 ÷ 16/2 =

$\frac{4}{2}\div \frac{16}{2} = \frac{4}{2}\times \frac{2}{16} = \frac{4 \times 2}{2 \times 16} = \frac{8}{32} = \frac{1}{4}$

k) 25/4 ÷ 12/2=

$\frac{25}{4}\div \frac{12}{2} = \frac{25}{4}\times \frac{2}{12} = \frac{25 \times 2}{4 \times 12} = \frac{50}{48} = \frac{25}{24}$

l) 13/4 ÷ 6/8 =

$\frac{13}{4}\div \frac{6}{8} = \frac{13}{4}\times \frac{8}{6} = \frac{13 \times 8}{4 \times 6} = \frac{104}{24} = \frac{13}{3}$