Question

calcula la siguiente suma y resta de fracciones
a) 1/5+ 4/3+1/2=

b)2/3+1/9+3/5=

c) 4/7+2/4+1/8=

d) 3/2+1/5+1/10

e) 3/8+1/4+3/16

resta de fracciones

a) 4/5-1/7=

b)3/10- 1/12=

c)2/3- 4/7=

d) 9/15- 3/8=
​

Answer 1

Respuesta:

Explicación paso a paso:

$a. 1/5+4/3+1/2\\\\=\frac{1}{5}+4/3+1/2\\\\=\frac{1}{5}+\frac{4}{3}+1/2\\\\=\frac{1}{5}+\frac{4}{3}+\frac{1}{2}\\\\=\frac{61}{30}\\\\=2\frac{1}{30}$

$b. 2/3+1/9+3/5=\\\\=\frac{2}{3}+1/9+3/5\\\\=\frac{2}{3}+\frac{1}{9}+3/5\\\\=\frac{2}{3}+\frac{1}{9}+\frac{3}{5}\\\\=\frac{62}{45}\\\\=1\frac{17}{45}$

$C. 4/7+2/4+1/8=\\\\=\frac{4}{7}+2/4+1/8\\\\=\frac{4}{7}+\frac{2}{4}+1/8\\\\=\frac{4}{7}+\frac{2}{4}+\frac{1}{8}\\\\=\frac{67}{56}\\\\=1\frac{11}{56}$

$D. 3/2+1/5+1/10\\\\=\frac{3}{2}+1/5+1/10\\\\=\frac{3}{2}+\frac{1}{5}+1/10\\\\=\frac{3}{2}+\frac{1}{5}+\frac{1}{10}\\\\=\frac{9}{5}\\\\=1\frac{4}{5}$

$e. 3/8+1/4+3/16\\\\=\frac{3}{8}+1/4+3/16\\\\=\frac{3}{8}+\frac{1}{4}+3/16\\\\=\frac{3}{8}+\frac{1}{4}+\frac{3}{16}\\\\=\frac{13}{16}$

Resta de fracciones:

$a. 4/5-1/7=\\\\=\frac{4}{5}-1/7\\\\=\frac{4}{5}-\frac{1}{7}\\\\=\frac{23}{35}$

$b. 3/10- 1/12=\\\\=\frac{3}{10}-1/12\\\\=\frac{3}{10}-\frac{1}{12}\\\\=\frac{13}{60}$

$c. 2/3- 4/7=\\\\=\frac{2}{3}-4/7\\\\=\frac{2}{3}-\frac{4}{7}\\\\=\frac{2}{21}$

$d. 9/15- 3/8=\\\\=\frac{9}{15}-3/8\\\\=\frac{9}{15}-\frac{3}{8}\\\\=\frac{9}{40}$