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1)16 1/2 - 13 7/9 = 33/2 - 124/9 =(33 × 9 - 124 × 2)/18 = 297/18 - 248/18 = 49/18 = 2 13/18
2)8/33 - 1/11 = (8 × 1 - 1 × 3)/33 = 8/33 - 3/33 = 5/33
3)2 13/18 × 18/33 = 49/18 × 6/11 = 49/33 = 1 16/33
4) 2,2 × 5/33 = 2 2/10 × 5/33 = 22/10×5/33=11/5 × 5/33 = 1/3
5)1 16/33 + 1/3 = 49/33 + 1/3 = (49 × 1 + 1 × 11)/33 = 49/33 + 11/33 = 60/33 = 20/11 = 1 9/11
6)1 9/11 + 2/11 = 20/11+2/11=22/11=2
ответ: 2
2)8/33 - 1/11 = (8 × 1 - 1 × 3)/33 = 8/33 - 3/33 = 5/33
3)2 13/18 × 18/33 = 49/18 × 6/11 = 49/33 = 1 16/33
4) 2,2 × 5/33 = 2 2/10 × 5/33 = 22/10×5/33=11/5 × 5/33 = 1/3
5)1 16/33 + 1/3 = 49/33 + 1/3 = (49 × 1 + 1 × 11)/33 = 49/33 + 11/33 = 60/33 = 20/11 = 1 9/11
6)1 9/11 + 2/11 = 20/11+2/11=22/11=2
ответ: 2
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