Question

没做的，请帮我做一下，做了的，如果错了，请帮我改一下。

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Answer 1

60×(1/12+1/15+1/4) =60×1/12+60×1/15+60×1/4 =5+4+15 =24 (5/12-3/8)×72 =5/12×72-3/8×72 =30-27 =3 7/25×4/9+7/25×5/9 =7/25×(4/9+5/9) =7/25×1 =7/25 6/7-5/24÷7/12 =6/7-5/24×12/7 =12/14-5/14 =7/14 =1/2 [3/4×(7/16-1/4)]÷9/13 =3/4×（7/16-4/16）×13/9 =1/4×3/16×13/3 =13/64 2/3-7/8+1/3 =(2/3+1/3)-7/8 =1-7/8 =1/8 5/6-(3/7-1/6) =(5/6+1/6)-3/7 =1-3/7 =4/7 1-1/3-2/3 =1-(1/3+2/3) =1-1 =0 1+3/5-1/10 =1+6/10-1/10 =1+1/2 =1又1/2 3/8-12/13+5/8 =3/8+5/8-12/13 =1-12/13 =1/13 1-(1/2-3/4) =1+3/4-2/4 =1+1/4 =5/4 1-1/2-1/4 =1/2-1/4 =2/4-1/4 =1/4 2/7-8/9+5/7 =(2/7+5/7)-8/9 =1-8/9 =1/9 2-1/4-3/4 =2-(1/4+3/4) =2-1 =1 1/2-(3/8-1/2) =1/2+1/2-3/4 =1-3/8 =5/8 2.64×1.7-2.64×0.7 =2.64×(1.7-0.7) =2.64×1 =2.64 31.5×1.07-3.15×0.7 =3.15×10.7-3.15×0.7 =3.15×(10.7-0.7) =3.15×10 =31.5 2.7×5.7-2.7+5.3×2.7 =2.7×(5.7-1+5.3) =2.7×10 =27 0.625÷0.125×0.8 =(0.625×0.8)×8÷(0.125×8) =0.5×8÷1 =4

追问

题目都对不上。