括号18+3/7括号乘以7/6
括号18+3/7括号乘以7/6
(18+3/7)x7/6
=18x7/6+3/7x7/6
=21+1/2
=21又1/2
括号7/10+5/6-3/8括号乘以120
(7/10+5/6-3/8)×120
=7/10×120+5/6×120-3/8×120
=84+100-45
=139
括号7/9乘以5/16括号乘以6/15。
(7/9×5/16)×6/15
=7/9×(5/16×6/15)
=7/9×1/8
=7/72
括号7-7/16括号乘以7/1
简便计算
(7-7/16)×1/7
=7×1/7-7/16×1/7
=1-1/16
=15/16
括号8/9减7/18饭括号乘以54
(18分之7-10分之5)×(9分之5+3分之2)
解:原式=(18分之7-2分之1)×(9分之5+9分之6)
=(18分之7-18分之9)×9分之11
=-18分之2×9分之11
=-9分之1×9分之11
=-81分之11
括号7/8-1/4括回乘以6/3
(7/8-1/4)x6/3
=7/8x2-1/4x2
=7/4-2/4
=5/4
括号18+3/7括住乘以七分之六
计算:
(18+3/7)x7/6
=18x7/6+3/7x7/6
=21+0.5
=21.5
括号4/9×7/10-1/3括号乘以6/5解答
(4/9x7/10-1/3)x6/5
=(14/45-1/3)x6/5
=-1/45x6/5
=-2/75
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括号-6×5乘括号-7/6×2/7
括号-6×5乘括号-7/6×2/7
=(6x5)x(7/6x2/7)
=30x1/3
=10