39*148\149+148*74\149

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39*148\149+148*74\149

独彭一霸：您好.
39×148/149+148×74/149
＝（39+74）×148/149
＝113×148/149
＝16724/149
＝112又36/149
祝好,再见.

39*148\149+148*74\149
=（39+74）*148/149
=113(149-1)/149
=113-113/149
=112又36/149