To add the fractions 9/20 and 7/20, you simply add the numerators (the numbers on top) and keep the denominator (the number on the bottom) the same.
9/20 + 7/20 = (9 + 7)/20 = 16/20
So, 9/20 + 7/20 = 16/20.
9/20 + 7/20
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