QuentinPe
а)
frac{29*13+29*2}{58*30}= frac{29(13+2)}{58*30}= frac{29*15}{58*30}= frac{1*1}{2*2}= frac{1}{4}
58∗30
29∗13+29∗2
=
58∗30
29(13+2)
=
58∗30
29∗15
=
2∗2
1∗1
=
4
1
б)
frac{9*32-32*6}{16*18}= frac{32(9-6)}{16*18}= frac{32*3}{16*18}= frac{2*1}{1*6}= frac{2}{6}= frac{1}{3}
16∗18
9∗32−32∗6
=
16∗18
32(9−6)
=
16∗18
32∗3
=
1∗6
2∗1
=
6
2
=
3
1
это 6
Elisabeth