Add 28/20 and 35/90
1st number: 1 8/20, 2nd number: 35/90
28/20 + 35/90 is 161/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
28/20 = 28 × 9/20 × 9 = 252/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
35/90 = 35 × 2/90 × 2 = 70/180 - Add the two like fractions:
252/180 + 70/180 = 252 + 70/180 = 322/180 - 322/180 simplified gives 161/90
- So, 28/20 + 35/90 = 161/90
In mixed form: 171/90
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