1\18 + 5.654= 1\18 + 5654\1000 = 1*500\18*500 + 5654 * 9\1000*9= 500\9000+ 50886\9000= 51386\9000=25693*2\4500*2=25693\4500= 4 3193\4500
А)
49:7=7
35:7=5
56:7=8
63:7=9
б)
8*9=72
8*8=64
8*7=56
А)(4,5)+(-3,7)=4,5-3,7=0,8;б)(-4,94):(-2,6)=1,9;в)(-6 3/8)-(-1 9/16)=-51/8+25/16=51/8-25/16=102-25/16=77/16