Question

calculati si exprimati rezultatul printr-o fractie ireductibila
Repedee dau coroana!! VA ROOOOOOOOOGGG DAU COROANA SI 50 PUNCTE !!!!!

Answer 1

Răspuns

Explicație pas cu pas:

e.   1/5+7/15+5/8=(24+56+75)/120=155/120=31/24

f.   1/4+7/24+5/8=(6+7+15)/24=28/24=7/6

g.   3+1/4+2/5=(60+5+8)/20=73/20

h.   3/11+4/3+7/12=(36+176+77)/132=289/132

i.   1/5-1/7=(7-5)/35=2/35

j.   7/20-5/18=(63-50)/180=13/180

k.   8/13-5/39=(24-5)/39=19/39

l.    3-2/5=(15-2)/5=13/5