587*75 =44025
899*37=33263
458*66=30228
160*85=13600
967*82=79294
172*21=3612
1/15+1/21 = 7/105+5/105 = 12/105 = 4/35
3. 4/35
32 596 800 : 10 = <span>3 259 680
</span><span>8 76 900 : 100 = 8 769
</span><span>240 000:10 000 = 24
</span><span>450 000 : 150 = 3 000
</span><span>36 000 :12 000 = 3
</span>124 360 000 : 18 000 = <span>6 908,88888889 </span>≈ 6 909