75 questions in addition, subtraction and separation of fractions Don't multiply and divide
1、1-1/32、7/8-1/83、1-3/64、1-1/45、9/25+7/25 6、25/36+11/36 7、29/33+13/66 8、5/9+7/18 9、9/10+13/25 10、7/15+7/20 11、5/9+2/7 12、5/9-7/18 13、6/5/2.4 14、2/[13/10] 15、6/9+1/9 16、7/9-4/917、6/9-1...
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