你好:
7分之5*11分之6*7/10
=5/7×6/11×7/10
=3/11
3/4*(9/10-5/6)
=3/4×1/15
=1/20
(1/5+1/9)*45
=1/5×45+1/9×45
=9+5
=14
23/25*1/4+1/4*2/25
=1/4×(23/25+2/25)
=1/4×1
=1/4
101*3/10-3/10
=3/10×(101-1)
=3/10×100
=30
你好:
7分之5*11分之6*7/10
=5/7×6/11×7/10
=3/11
3/4*(9/10-5/6)
=3/4×1/15
=1/20
(1/5+1/9)*45
=1/5×45+1/9×45
=9+5
=14
23/25*1/4+1/4*2/25
=1/4×(23/25+2/25)
=1/4×1
=1/4
101*3/10-3/10
=3/10×(101-1)
=3/10×100
=30