Question

Va rog decat rezultatul sub forma de fractie

Answer 1

1)(5/6+11/9):74/18
=(45/54+66/54):74/18
=111/54:74/18
=111/54•18/74
=111/27•9/74
=111/3•2/74
=222/222
=111/111
2)nu știu

3)[7/5:14/15+3/2:(9/4-1 întreg și 1/2)]•2/7
=[7/5•15/14+3/2:(9/4-3/2)]•2/7
=[1/1•3/2+3/2:(9/4-6/4)]•2/7
=(3/2+3/2:3/4)•2/7
=(3/2+3/2•4/3)•2/7
=(3/2+1/1•2/1)•2/7
=(3/2+2/1)•2/7
=(3/2+4/2)•2/7
=7/2•2/7
=1/1