请提供50道五年级的异分母分数加减法!越快越好!

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请提供50道五年级的异分母分数加减法!越快越好!
请提供50道五年级的异分母分数加减法!越快越好!

请提供50道五年级的异分母分数加减法!越快越好!
3/7 + 49/9 - 4/3
8/9 +15/36 + 1/27
12+ 5/6 – 2/9 +3
8— 5/4 + 1/4
6-3/8 – 3/8
4/7 + 5/9 + 3/7 + 5/9
5/2 -( 3/2 + 4/5 )
7/8 + ( 1/8 + 1/9 )
9+ 5/6 + 5/6
3/4 + 8/9 - 1/3
7 +5/49 + 3/14
6 +( 1/2 + 2/3 )
8 + 4/5 + 8 + 11/5
31 + 5/6 – 5/6
9/7 - ( 2/7 – 10/21 )
5/9 + 3/7 + 49/9 - 4/3
4/5 + 25/16 + 2/3 + 3/4
14 + 8/7 – 5/6 + 12/15
17/32 – 3/4 + 9/24
3 + 2/9 + 1/3
5/7 + 3/25 + 3/7
3/14 + 2/3 + 1/6
1/5 + 2/3 + 5/6
9/22 + 1/11 — 1/2
5/3 + 11/5 + 4/3
45 + 2/3 + 1/3 + 15
7/19 + 12/19 + 5/6
1/4 + 3/4 - 2/3
8/7 + 21/16 + 1/2
1/5 – 1/5 + 21
6.9+4.8+3.1 0.456+6.22+3.78 15.89+(6.75-5.8)*6
4.02+5.4+0.98 5.17-1.8-3.2 13.75-(3.75+6.48)*6
3.68+7.56-2.68 7.85+2.34-0.85+4.66 35.6-1.8-15.6-7.2
3.82+2.9+0.18+9.1 9.6+4.8-3.6 7.14-0.53-2.47
5.27+2.86-0.66+1.63 13.35-4.68+2.65 73.8-1.64-13.8-5.36
47.8-7.45+8.8 0.398+0.36+3.64 15.75+3.59-0.59+14.25
7/10 + 1/10 = 8/10 = 4/5
5/9 + 4/9 = 9/9 = 1
8/15 + 3/15 = 11/15
9/14 + 3/14 = 12/14 = 6/7
3/5 + 8/5 = 11/5
4/15 - 3/15 = 1/15
7/8 - 5/8 = 2/8 = 1/4
5/3 - 2/3 = 3/3 =1
7/8 - 4/8 = 3/8
1314/2010- 520/2010 = 794/2010 = 397/1005