Question

Qual a resposta de 12/15 - 9/20

Answer 1

Boa noite!

$\frac{12}{15} - \frac{9}{20}$

MMC de 15 e 20 = 60

$\frac{48 - 27}{60} = \frac{21}{60}$

simplificando

$\frac{21 \div 3}{60 \div 3} = \frac{7}{20}$

Answer 2

$\frac{12}{15} - \frac{9}{20} \\ \frac{4}{5} - \frac{9}{20} \\ \frac{16 - 9}{20} \\ \frac{7}{20}$


Resposta:
7/20