Add 9/10 and 9/20
9/10 + 9/20 is 27/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
9/10 = 9 × 2/10 × 2 = 18/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
9/20 = 9 × 1/20 × 1 = 9/20 - Add the two like fractions:
18/20 + 9/20 = 18 + 9/20 = 27/20 - So, 9/10 + 9/20 = 27/20
In mixed form: 17/20
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