A simple calculation of 29 / 21 - 1 + 3 / 21

A simple calculation of 29 / 21 - 1 + 3 / 21


29/21 - 1 + 3/21
= 1 + 8/21 + 3/21 - 1
= 11/21



Calculate with recursive equation
1.11111×66666+77778×33333


11111×66666+77778×33333
=33333×22222+77778×33333
=33333(22222+77778)
=3333300000



Simple calculation: (pass the equation)
382 × 498-382 / 116 + 498 × 381


(382+498×381)/(382×498-116)=[382+498×(382-1)]/(382×498-116)=[382+498×382-498]/(382×498-116)=[382+498×382-498]/(382×498-116)=(382×498-116)/(382×498-116)=1