a- 5/8 + 2 3/4 =
5/8 + 11/4 = 5/8 + 22/8 = 27/8 = 3 3/8
b- 8 3/4 - 5 2/3 =
35/4 - 17/3 = 105/12 - 68/12 = 37/12 = 3 1/12
c- 8 3/10 - 3 4/5 =
83/10 - 19/5 = 83/10 - 38/10 = 45/10 = 4 5/10
d- 3 2/5 + 6 8/10 + 2 12/18 =
17/5 + 68/10 + 48/18 = 17/5 + 34/5 + 8/3 =
51/5 + 8/3 = 153/15 + 40/15 = 193/15 = 12 13/15
e- 7 + 2 1/6 =
7 + 13/6 = 42/6 + 13/6 = 55/6 = 9 1/6
f- 8 6/9 + 12 4/18 - 2 1/3 =
78/9 + 220/18 - 7/3 = 26/3 + 110/9 - 7/3 =
78/9 + 110/9 - 21/9 = 167/9 = 18 5/9
g- 30 4/9 + 24 9/12 - 20 3/5 =
274/9 + 297/12 - 103/5 =
274/9 + 99/4 - 103/5 =
5480/180 + 4455/180 - 3708/180 = 6227/180 =
34 107/180
si te ayude da me coronita porfis
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a- 5/8 + 2 3/4 =
5/8 + 11/4 = 5/8 + 22/8 = 27/8 = 3 3/8
b- 8 3/4 - 5 2/3 =
35/4 - 17/3 = 105/12 - 68/12 = 37/12 = 3 1/12
c- 8 3/10 - 3 4/5 =
83/10 - 19/5 = 83/10 - 38/10 = 45/10 = 4 5/10
d- 3 2/5 + 6 8/10 + 2 12/18 =
17/5 + 68/10 + 48/18 = 17/5 + 34/5 + 8/3 =
51/5 + 8/3 = 153/15 + 40/15 = 193/15 = 12 13/15
e- 7 + 2 1/6 =
7 + 13/6 = 42/6 + 13/6 = 55/6 = 9 1/6
f- 8 6/9 + 12 4/18 - 2 1/3 =
78/9 + 220/18 - 7/3 = 26/3 + 110/9 - 7/3 =
78/9 + 110/9 - 21/9 = 167/9 = 18 5/9
g- 30 4/9 + 24 9/12 - 20 3/5 =
274/9 + 297/12 - 103/5 =
274/9 + 99/4 - 103/5 =
5480/180 + 4455/180 - 3708/180 = 6227/180 =
34 107/180
si te ayude da me coronita porfis