(7/4-5/8+11/12)/(-7/24)

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(7/4-5/8+11/12)/(-7/24)

=(7/4*24-5/8*24+11/12*24)/(-7)
=(42-15+22)/(-7)
=49/(-7)
=-7

(7/4-5/8+11/12)/(-7/24)
=[ (7/4-5/8+11/12)*24]/[(-7/24)*24]
=[49]/[-7]
=-7