Add 9/15 and 12/20
9/15 + 12/20 is 6/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
9/15 = 9 × 4/15 × 4 = 36/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
12/20 = 12 × 3/20 × 3 = 36/60 - Add the two like fractions:
36/60 + 36/60 = 36 + 36/60 = 72/60 - 72/60 simplified gives 6/5
- So, 9/15 + 12/20 = 6/5
In mixed form: 11/5
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