Question

Multiply the numbers and simplify the answer: 3 x 1- 3/4

Answer 1

`\underbrace{3*1}_(first)-(3)/(4)=3-(3)/(4)=2(1)/(4)`


`3*1(3)/(4)=3*(1*4+3)/(4)=3*(4+3)/(4)=(3)/(1)*(7)/(4)=(3*7)/(4)=(21)/(4)=(20+1)/(4)=(20)/(4)+(1)/(4)\\\center\boxed{=5(1)/(4)}`