1)P= x+x+x+x = 4x
2)P= 5+x+5+x= 10+2x
3)P=3+3+x=6+x
4)P=x+x+x=3x
<span>а) 4/5: 2/15=4*15/5*2=6
</span><span>б) 3/11:9=1/33
</span><span>в)45/46:15/23=3/2=1.5
</span><span>г) 3 1/2: 2 1/3=3/2=1.5</span>
125² * 25² = (5³)² * (5²)² = 5⁶ * 5⁴ = 5¹⁰ = 5*5*5*5*5*5*5*5*5*5
343² * 49³ = (7³)² * (7²)³ = 7⁶ * 7⁶ = 7¹² = 7*7*7*7*7*7*7*7*7*7*7*7