Question

Pfv ajudar nesse cálculo !!

1-resolva as frações e simplifique os resultados ?

A) 2/2 - 3/6 + 6/5 + 4/2 =
l
l
l
l
B) 4/3 + 30/45 + 1/4 =
l
l
l
l
C) 4/3 + 6/5
l
l
l
l
D) 6/21 + 18/12 - 5/14 =



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Answer 1

A)

$\frac{30 - 15 + 36 + 60}{30}$

$\frac{15 + 36 + 60}{30}$

$\frac{ 111 }{30} \div 3 \\ \frac{37}{10}$

B)

$\frac{240 + 120 + 45}{180}$

$\frac{405}{180} \div 5$

$\frac{81}{36} \div 9$

$\frac{9}{4}$

C)

$\frac{20 + 18}{15}$

$\frac{38}{15}$

D)

$\frac{24 + 126 + 30}{84}$

$\frac{180}{84} \div 2$

$\frac{90}{42} \div 3$

$\frac{30}{14} \div 2$

$\frac{15}{7}$