Question

3/4+2/8+1/2 cuanto es? 2/7+3/14+2/4 ? 3/5 +2/3+3/6+1/2? 6/8+3/4+5/6? 3/4+6/8+4/5? 3/9+2/3+8/6? sumas de fracciones

Answer 1

Explicación paso a paso:

La suma o resta de fracciones es una de las operaciones básicas que permite combinar dos o más fracciones

1.

[tex]\frac{3}{4} + \frac{2}{8}+ \frac{1}{2}=\frac{(3)(2) +(2)(1) +(1)(4) }{8} =\frac{6+2+4}{8} =\frac{12}{8} =\frac{3}{2}[/tex]

2.

[tex]\frac{2}{7} + \frac{3}{14}+ \frac{2}{4}=\frac{(2)(4) +(3)(2) +(2)(7) }{28} =\frac{8+6+14}{28} =\frac{28}{28} =1[/tex]

3.

[tex]\frac{3}{5} + \frac{2}{3}+ \frac{3}{6}+ \frac{1}{2}=\frac{(3)(6) +(2)(10) +(3)(5) +(1)(15) }{30} =\frac{18+20+15+15}{30} =\frac{68}{30} =\frac{34}{15}[/tex]

4.

[tex]\frac{6}{8} + \frac{3}{4}+ \frac{5}{6}=\frac{(6)(3) +(3)(6) +(5)(4) }{24} =\frac{18+18+20}{24} =\frac{56}{24} =\frac{7}{3}[/tex]

5.

[tex]\frac{3}{4} + \frac{6}{8}+ \frac{4}{5}=\frac{(3)(10) +(6)(5) +(4)(8) }{40} =\frac{30+30+32}{40} =\frac{92}{40} =\frac{23}{10}[/tex]

6.

[tex]\frac{3}{9} + \frac{2}{3}+ \frac{8}{6}=\frac{(3)(2) +(2)(6) +(8)(3) }{18} =\frac{6+12+24}{18} =\frac{42}{18} =\frac{7}{3}[/tex]