440/495 = (440÷55)/(495÷55)=8/9
126/270=(126÷18)/(270÷18)=7/15
105/200=(105÷5)/(200÷5)=21/40
405/900=(405÷45)/(900÷45)=9/20
440/495 = (440÷55)/(495÷55)=8/9
126/270=(126÷18)/(270÷18)=7/15
105/200=(105÷5)/(200÷5)=21/40
405/900=(405÷45)/(900÷45)=9/20