1.27/32+1/8-9/16 2.7/9-(1/3+1/6) 3.13/14-5/7+13/13 用简便算法的有:9/16-3/8-1/16 3/4-(3/4-1/3)还有用简便运算 9/10-7/12-5/12 11/10-5/8-3/8+1/10 2-2/9-7/9+1/2
问题描述:
1.27/32+1/8-9/16 2.7/9-(1/3+1/6) 3.13/14-5/7+13/13 用简便算法的有:9/16-3/8-1/16 3/4-(3/4-1/3)
还有用简便运算 9/10-7/12-5/12 11/10-5/8-3/8+1/10 2-2/9-7/9+1/2
答
27/32+1/8-9/16 =27/32+4/32-18/32=13/327/9-(1/3+1/6)=7/9-1/3-1/6=14/18-6/18-3/18=5/1813/14-5/7+13/13 =13/14-10/14+1=3/14+1=17/149/16-3/8-1/16=9/16-1/16-3/8=4/8-3/8=1/83/4-(3/4-1/3)=3/4-3/4+1/3=1/39...