Add 28/30 and 12/20
28/30 + 12/20 is 23/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
28/30 = 28 × 2/30 × 2 = 56/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
12/20 = 12 × 3/20 × 3 = 36/60 - Add the two like fractions:
56/60 + 36/60 = 56 + 36/60 = 92/60 - 92/60 simplified gives 23/15
- So, 28/30 + 12/20 = 23/15
In mixed form: 18/15
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