Add 28/20 and 90/18
1st number: 1 8/20, 2nd number: 5 0/18
28/20 + 90/18 is 32/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 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 18 × 10 = 180,
90/18 = 90 × 10/18 × 10 = 900/180 - Add the two like fractions:
252/180 + 900/180 = 252 + 900/180 = 1152/180 - 1152/180 simplified gives 32/5
- So, 28/20 + 90/18 = 32/5
In mixed form: 62/5
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