1)<span> 61/8</span>−<span>175/100</span>=<span>25 · 61/25 · 8</span>−<span>2 · 175/2 · 100</span>=<span>1525/200</span>−<span>350/200</span>=<span>1525 − 350/200</span>=<span>1175/200</span>=<span>47 · 25/8 · 25</span>=<span>47/8</span><span>
2) </span>5<span> 6/11</span>−<span>35/10</span>=<span>5 · 11 + 61/1</span>−<span>35/10</span>=<span>61/11</span>−<span>35/10</span>=<span>10 · 61/10 · 11</span>−<span>11 · 35/11 · 10</span>=<span>610/110</span>−<span>385/110</span>=<span>610 − 385/110</span>=<span>225/110</span>=<span>45 · 5/22 · 5</span>=<span>45/22</span><span>
3) </span><span>9−</span><span>22/10</span>=<span>9/1</span>−<span>22/10</span>=<span>10 · 9/10 · 1</span>−<span>1 · 22/1 · 10</span>=<span>90/10</span>−<span>22/10</span>=<span>90 − 22/10</span>=<span>68/10</span>=<span>34 · 2/5 · 2</span>=<span>34/5</span><span>
4) </span><span>34/5</span>×<span>45/22</span>=<span>34 · 45/5 · 22</span>=<span>1530/110</span>=<span>153 · 10/11 · 10</span>=<span>153/11</span><span>
5) </span><span>47/8</span>÷<span>153/11</span>=<span>47/8</span>·<span>11/153</span>=<span>47 · 11/8 · 153</span><span>= 517/1224
6) 517/1224</span>×<span>12/7</span>=<span>517 · 12/1224 · 7</span>=<span>6204/8568</span>=<span>517 · 12/714 · 12</span>=<span>517/714</span>
Пропущено число 9
каждое четное число это а^2, где а предыдущее число
1 целая3/5*0,5+0,16*1 1/4=
1,6*0,5+0,16*1,25=
0,8+0,2=1
(7дм +7 дм)+ (5дм 3см+5дм 3см)
7+7=14
5+5=10 3+3 =6см
14+10=24дм 6см