(1)..7/10+1/10=8/10=4/5

　　(2)..5/9+4/9=9/9=1

　　(3)..8/15+3/15=11/15

　　(4)..9/14+3/14=12/14=6/7

　　(5)..3/5+8/5=11/5

　　(6)..4/15-3/15=1/15

　　(7)..7/8-5/8=2/8=1/4

　　(8)..5/3-2/3=3/3=1

　　(9)..7/8-4/8=3/8

　　(10)..1314/2010-520/2010=794/2010=397/1005

　　简算24道

　　不是口算

　　1.5/2-（3/2+4/5）2.7/8+（1/8+1/9）3.5/6+（1/2+2/3）4.9/7-（2/7-10/21）5.3/7+49/9+4/76.8/9+15/36+3/277.5/2-（3/2+4/5）8.7/8+（1/8+1/9）9.9/7-（2/7-10/21）10.1/5+（3/7+8/10）1.1/3+3/4+1/52.3/8+8/3-1/23.5/6+1/12+3/44.30/46-1/2+7/235.8/11+2/6+7/336.19/8-1/2-3/47.7/25+3/10-2/58.18/121-1/2+9/119.6/17-1/51-1/3410.8/15+7/3-8/51.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/4

　　我还有5.6÷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+1/230.101×1/5–1/5×211.3/7×49/9-4/32.8/9×15/36+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+2/3×3/418.14×8/7–5/6×12/1519.17/32–3/4×9/24

　　多谢谢谢你

　　祝你学习进步！