Question

19.simplifique as frações a)45/63
b)75/30 c)42/105

Answer 1

a)

$\frac{45}{63} = \frac{45 \div 9}{63 \div 9} = \frac{5}{7}$

b)

$\frac{75}{30} = \frac{75 \div 15}{30 \div 15} = \frac{5}{2}$

c)

$\frac{42}{105} = \frac{42 \div 21}{105 \div 21} = \frac{2}{5}$