Question

7／9÷［4／5÷（5／7一1／14）］怎样简算？

Answer 1

7／9÷［4／5÷（5／7一1／14）］怎样简算？

原式
=7╱9÷（4╱5÷9╱14）
=7╱9÷56╱45
=5╱8

7点6÷5点4÷1点9×5点4能简算吗?

7.6÷5.4÷1.9×5.4 能简算吗?
= 7.6 ÷ 1.9
= 4

4/7除以5/9乘5/9x3/7怎样简算

原式=4/7x9/5x5/9x3/7
=(4/7x3/7)x(9/5x5/9)
=12/49x1
=12/49

7×1/8+14÷8-5×0点二五怎样简算

7×1/8+14÷8-5×0点二五怎样简算
=7x1/8+14x1/8-10x1/8
=（7+14-10）x1/8
=11x1/8
=11/8

3·4×7×1·5怎么简算

3.4×5×0.3×7=35.7

63×（4/9+5/7)简算

63×（4/9+5/7)
=63×4/9+63×5/7
=7×4+9×5
=28+45
=73

15点7减9点4加5点7的和等于(能简算要简算

15.7-(9.4+5.7)=15.7-5.7-9.4=0.6

1/9×(81-14)×4/7怎么简算?

原式=1/9x4/7x67
=4/63x(63+4)
=4/63x63+4/63x4
=63+16/63
=63又16/63

168乘25×14÷7÷5简算

168×25×14÷7÷5
=168×25÷5×14÷7
=168×5×2
=168×10
=1680

[(7/4-14/3)x28]（5/1x4）怎样才能简算

[(4/7 -3/14)*28]×4/5
= (16-6)×0.8
= 8