Add 20/18 and 25/20
1st number: 1 2/18, 2nd number: 1 5/20
20/18 + 25/20 is 85/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
20/18 = 20 × 10/18 × 10 = 200/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
25/20 = 25 × 9/20 × 9 = 225/180 - Add the two like fractions:
200/180 + 225/180 = 200 + 225/180 = 425/180 - 425/180 simplified gives 85/36
- So, 20/18 + 25/20 = 85/36
In mixed form: 213/36
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