Знайдіть значення виразу (6 клас)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

1)12:3 3/8-1 ц1/4:15/32=8/9
1) 12÷3<span>ц3/8</span>=<span>12/1</span>÷3ц<span>3/8</span>=<span>12/1</span>÷<span>3 · 8 + 3 / 8</span>=<span>12/1</span>÷<span>27/8</span>=<span>12/1</span>·<span>8/27</span>=<span>12 · 8 / 1 · 27</span>=<span>96/27</span>=<span>32*3 / 9*3</span>=<span>32/9</span>=3ц<span>5/9
2)</span>1<span>ц1/4</span>÷<span>15/32</span>=<span>1 · 4 + 1/4</span>÷<span>15/32</span>=<span>5/4</span>÷<span>15/32</span>=<span>5/4</span>·<span>32/15</span>=<span>5 · 32/4 · 15</span>=<span>160/60</span>=<span>8 · 20/3 · 20</span>=<span>8/3</span>=2ц<span>2/3
3)</span><span>3ц<span>5/9-</span></span><span>2ц<span>2/3=3ц5/9-2ц6/9=2ц14/9-2ц6/9=8/9
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2)1 31/35:(2-8/9:1ц19/45)=<span><span>143/<span>280
</span></span>1)</span>8/9:1ц19/45=8/9*45/64=<span>360/<span>576=5/8
</span></span>2)2-5/8=<span>16/8</span>−<span>5/8=11</span>/8=1ц3/8
3)1ц 31/35:1ц3/8=<span>66/35</span>−<span>11/8=</span><span>528/280</span>−<span>385/280=</span><span>143/280
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3)(1 1/35:4/5-1 8/35)*3 1/3=<span>3ц31/63
</span><span>1) 1ц 1/35:4/5=1ц2/7
2) 1ц2/7-1ц8/35=1ц2/43
</span><span>3) 1ц2/43*3ц1/3=3ц31/63

4)(7-1 5/9:7/24):20/27 =</span>2ц1/4
<span>1)1ц 5/9:7/24=5ц1/3
2) 7-</span>5ц1/3=<span>1ц2/3
</span>3) 1ц2/3:20/27 =2ц1/4