Question

八十四又十九分之四乘以一点三七五加一百零五分又十九分之五乘以零点九 简便计算

Answer 1

八十四又十九分之四乘以搜笑一点桥携三七五加一百零五分又十九分之五乘以零点九
=84又4/19+84又4/19×3/8+105又5/19-105又5/19×0.1
=（84又4/19+105又5/19）+31又11/敏漏伏19-10又10/19
=189又9/19+21又1/19
=210又10/19

Answer 2

八十四又十九档差分行缓皮之四乘以一点三七五加一百零五分又十九分之五乘以零点九
=(80+80/19)x11/8+(100+100/19)x9/10
=80x11/8+80/19x11/8+100x9/10+100/19x9/10
=110+110/哪庆19+90+90/19
=200+200/19
=210又 10/19