Question

suma de fracciones heterogeneas 2/5+1/4. 2/5+7/16. 3/8+ 1 /6 + 5/12 ​porfa ayúdenme a resolverlo :3

Answer 1

Respuesta:

2/5 + 1/4:

$m.c.m.$ $de$ $5,4 =5\cdot \:2\cdot \:2 = 20$

$\frac{2}{5}+\frac{1}{4}=\frac{8+5}{20}=\frac{13}{20}$

2/5 + 7/16:

$m.c.m.$ $de$ $5,16=5\cdot \:2\cdot \:2\cdot \:2\cdot \:2=80$

$\frac{2}{5}+\frac{7}{16}=\frac{32+35}{80}=\frac{67}{80}$

3/8 + 1/6 + 5/12:

$m.c.m.$ $de$ $8,6,12=2\cdot \:2\cdot \:2\cdot \:3=24$

$\frac{3}{8}+\frac{1}{6}+\frac{5}{12}=\frac{9+4+10}{24}=\frac{23}{24}$