eResolver los siguientes ejercicios
a. 1/2 + 1/4 + 1/8
b. 1/3 + 3 + 9/3
c. 1/2 - 2/4 + 3/6
d. 2/5- 3/10 + 4/15
e. 5/6 - 2/3 + 1/2
f. 2/3 - (- 21/2 ) - 3/4
doy 100 puntos
Respuestas
Respuesta:
a. = 7/8
b. = 19/3
c. = 1/2
d. = 11/30
e. = 2/3
f. = -127/12
Explicación paso a paso:
a. 1/2 x 4 = 4/8 4/8 + 2/8 = 6/8
1/4 x 2 = 2/8 6/8 + 1/8 = 7/8
1/8 x 1 = 1/8
b. 1/3 x 1 = 1/3 1/3 + 9/3 = 10/3
3/1 x 3 = 9/3 10/3 + 9/3 = 19/3
9/3 x 1 = 9/3
c. 1/2 x 6 = 6/12 6/12 - 6/12 = 0/12
2/4 x 3 = 6/12 0/12 + 6/12 = 6/12 6/12 ÷ 6 = 1/2
3/6 x 2 = 6/12
d. 2/5 x 6 = 12/30 12/30 - 9/30 = 3/30
3/10 x 3 = 9/30 3/30 + 8/30 = 11/30
4/15 x 2 = 8/30
e. 5/6 x 1 = 5/6 5/6 - 4/6 = 1/6
2/3 x 2 = 4/6 1/6 + 3/6 = 4/6 4/6 ÷ 2 = 2/3
1/2 x 3 = 3/6
f. 2/3 x 4 = 8/12 8/12 - (-126/12) = (-118/12)
(-21/2) x 6 = (-126/12) (-118/12) - 9/12 = (-127/12)
3/4 x 3 = 9/12
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