Question

A ) 1/2 - ( 2/3 × 1/5 ) + 7/30
B ) [ 4 + ( 3/7 ÷ 9/21 ) - 1/5 ] ÷ 1/2
C ) 3/5 + 1/4 - ( 5/7 ÷ 25/7 )
D ) 6/7 ÷ ( 4/3 - 1/2 )
E ) [ ( 11/2 - 7/2 ) × 4/7 ] - ( 11/42 )
F ) ( 9/2 + 8/13 ) × 26/5

Answer 1

Explicación paso a paso:

a)

$\frac{1}{2} - \frac{2}{15} + \frac{7}{30 } \\ \frac{1}{2} \times 30 - \frac{2}{15} \times 30 + \frac{7}{30} \times 30 \\ 15 - 4 + 7 = 18$

b)

${4 + 1 - \frac{1}{5} } \div \frac{1}{2} \\ 4 + 1 - \frac{2}{5} \\ \frac{23}{5}$

c)

$\frac{3}{5} + \frac{1}{4} - \frac{1}{5} \\ \frac{2}{5} + \frac{1}{4 } \\ \frac{13}{20}$

d)

$\frac{6}{7} \div 5 \\ \frac{6}{35}$

e)

$(2 \times \frac{4}{7} ) - \frac{11}{42} \\ \frac{8}{7} - \frac{11}{42} \\ - 3 \: (creo \: xd)$

f)

$\frac{127}{26} \times \frac{26}{5} \\ \frac{127}{5}$

amén