Comparison size: 1-3 / 4__ 1-4/5,1-9/10__ 1-12/13,1-20/21__ 1-38/39,1-88/99__ 1-99/100 How to compare two numbers whose denominator is 1 larger than the numerator?

Comparison size: 1-3 / 4__ 1-4/5,1-9/10__ 1-12/13,1-20/21__ 1-38/39,1-88/99__ 1-99/100 How to compare two numbers whose denominator is 1 larger than the numerator?

1-3/4>1-4/5,
1-9/10>1-12/13,
1-20/21>1-38/39,
1-88/99>1-99/100
The denominator is larger than the numerator by 1, and the fraction with larger denominator is larger