Add 18/20 and 9/16
18/20 + 9/16 is 117/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
18/20 = 18 × 4/20 × 4 = 72/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
9/16 = 9 × 5/16 × 5 = 45/80 - Add the two like fractions:
72/80 + 45/80 = 72 + 45/80 = 117/80 - So, 18/20 + 9/16 = 117/80
In mixed form: 137/80
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