您好！19/24+7/8=5/3，计算过程如下图所示。
先通分再相加：＝19/24＋21/24＝40/24＝5/3
分数计算19/24+7/8=19/24+21/24=40/24=5/3
19/24+7/8= 19/24+21/24= 40/24 =5/3
