(资料图片仅供参考)

1、1.3/7 × 49/9 - 4/32.8/9 × 15/36 + 1/273.12× 5/6 – 2/9 ×34.8× 5/4 + 1/45.6÷ 3/8 – 3/8 ÷66.4/7 × 5/9 + 3/7 × 5/97.5/2 -（ 3/2 + 4/5 ）8.7/8 + （ 1/8 + 1/9 ）9.9 × 5/6 + 5/610.3/4 × 8/9 - 1/311.7 × 5/49 + 3/1412.6 ×（ 1/2 + 2/3 ）13.8 × 4/5 + 8 × 11/514.31 × 5/6 – 5/615.9/7 - （ 2/7 – 10/21 ）16.5/9 × 18 – 14 × 2/717.4/5 × 25/16 + 2/3 × 3/418.14 × 8/7 – 5/6 × 12/1519.17/32 – 3/4 × 9/2420.3 × 2/9 + 1/321.5/7 × 3/25 + 3/722.3/14 ×× 2/3 + 1/623.1/5 × 2/3 + 5/624.9/22 + 1/11 ÷ 1/225.5/3 × 11/5 + 4/326.45 × 2/3 + 1/3 × 1527.7/19 + 12/19 × 5/628.1/4 + 3/4 ÷ 2/329.8/7 × 21/16 + 1/230.101 × 1/5 – 1/5 × 21。

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