В десятичных дробях
<span>(2 5\8 +1,75)*1,6= (2,625+1,75)*1,6=4,375*1,6=7</span>
<span>В простых дробях</span>
<span>(2 5\8 +1,75)*1,6 = (2 5/8 + 1 3/4) * 1 3/5 = 35/8*8/5=7</span>
(2 5\8+1,75)*1,6=7
1)2 5\8+1 75\100=(2+1)+(5\8+75\100)=3 275\200=875\200=4,375
2)4,375*1,6=7
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3217:6=536 остаток 1
1984:3=661 остаток 1
7198:4 =1799 остаток 2