Выполните умножение смешанных чисел: 2 1/3×1 1/5; 2 7/9×3 3/5; 2 1/2×1 3/5; 3 7/9×1 1/17; 7 1/2×2 4/15; 5 1/6×3 1/7; 3 3/7×2 1/3; 7 1/3×2 2/11

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1) 2 1/3 × 1 1/5 = (7/3) * (6/5) = 42/15 = 2 12/15 = 2 4/5

2) 2 7/9 × 3 3/5 = (25/9) * (18/5) = 450/45 = 10

3) 2 1/2 × 1 3/5 = (5/2) * (8/5) = 40/10 = 4

4) 3 7/9 × 1 1/17 = (34/9) * (18/17) = 612/153 = 4

5) 7 1/2 × 2 4/15 = (15/2) * (34/15) = 510/30 = 17

6) 5 1/6 × 3 1/7 = (31/6) * (22/7) = 682/42 = 16 10/42 = 16 5/21

7) 3 3/7 × 2 1/3 = (24/7) * (7/3) = 168/21 = 8

8) 7 1/3 × 2 2/11 = (22/3) * (25/11) = 550/33 = 16 22/33