Add 15/90 and 28/20
1st number: 15/90, 2nd number: 1 8/20
15/90 + 28/20 is 47/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
15/90 = 15 × 2/90 × 2 = 30/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
28/20 = 28 × 9/20 × 9 = 252/180 - Add the two like fractions:
30/180 + 252/180 = 30 + 252/180 = 282/180 - 282/180 simplified gives 47/30
- So, 15/90 + 28/20 = 47/30
In mixed form: 117/30
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