计算(能简便的要简便)3分之7×(7分之3 +28分之3 )(32+7分之4 )÷4
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/07/15 06:13:42
计算(能简便的要简便)3分之7×(7分之3 +28分之3 )(32+7分之4 )÷4
3分之7×(7分之3 +28分之3 ) (32+7分之4 )÷4 (24分之13 +16分之13 )÷ 16分之13 (27分之1 - 36分之1)÷ 9分之1 8分之3÷11分之7 +8分之5 ÷ 11分之7 (21+15分之7 )÷ 5分之7 81÷14+17× 14分之1 0.575×19+1.9×4.25 9.6—1÷3—3 分之2
3分之7×(7分之3 +28分之3 ) (32+7分之4 )÷4 (24分之13 +16分之13 )÷ 16分之13 (27分之1 - 36分之1)÷ 9分之1 8分之3÷11分之7 +8分之5 ÷ 11分之7 (21+15分之7 )÷ 5分之7 81÷14+17× 14分之1 0.575×19+1.9×4.25 9.6—1÷3—3 分之2
(1) 7/3 (3/7 + 3/28) = 7/3 * 3/7 + 7/3 * 3/28 = 1 + 1/4 = 5/4
(2)(32+4/7)/4 = 32/4 + 4/7 /4 = 8 + 1/7 = 57/7
(3) (13/24 + 13/16)/(13/16) = 13/24 * 16/13 + 13/16 * 16/13 = 2/3 + 1 = 5/3
(4) (1/27 - 1/36)/(1/9) = 1/27 * 9 - 1/36 * 9 = 1/3 - 1/4 = 1/12
(5) (3/8)/(7/11) + (5/8)/(7/11) = (3/8 + 5/8)*(11/7) = 11/7
(6) (21+7/15)/(7/5) = 21* 5/7 + 7/15*5/7 = 15 + 1/3 = 46/3
(7) 81/14 + 17*(1/14) = (81+17)/14 = 98/14= 7
(8) 0.575*19 + 1.9*4.25 = 0.575*19 + 0.425*19 = (0.575+0.425)*19 = 19
(9) 9.6 - 1/3 - 2/3 = 9.6 - (1/3 + 2/3) = 9.6-1 = 8.6
(2)(32+4/7)/4 = 32/4 + 4/7 /4 = 8 + 1/7 = 57/7
(3) (13/24 + 13/16)/(13/16) = 13/24 * 16/13 + 13/16 * 16/13 = 2/3 + 1 = 5/3
(4) (1/27 - 1/36)/(1/9) = 1/27 * 9 - 1/36 * 9 = 1/3 - 1/4 = 1/12
(5) (3/8)/(7/11) + (5/8)/(7/11) = (3/8 + 5/8)*(11/7) = 11/7
(6) (21+7/15)/(7/5) = 21* 5/7 + 7/15*5/7 = 15 + 1/3 = 46/3
(7) 81/14 + 17*(1/14) = (81+17)/14 = 98/14= 7
(8) 0.575*19 + 1.9*4.25 = 0.575*19 + 0.425*19 = (0.575+0.425)*19 = 19
(9) 9.6 - 1/3 - 2/3 = 9.6 - (1/3 + 2/3) = 9.6-1 = 8.6
计算(能简便的要简便)3分之7×(7分之3 +28分之3 )(32+7分之4 )÷4
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