Add 28/20 and 4/90
1st number: 1 8/20, 2nd number: 4/90
28/20 + 4/90 is 13/9.
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,
4/90 = 4 × 2/90 × 2 = 8/180 - Add the two like fractions:
252/180 + 8/180 = 252 + 8/180 = 260/180 - 260/180 simplified gives 13/9
- So, 28/20 + 4/90 = 13/9
In mixed form: 14/9
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