Add 18/36 and 25/20
1st number: 18/36, 2nd number: 1 5/20
18/36 + 25/20 is 7/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
18/36 = 18 × 5/36 × 5 = 90/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
25/20 = 25 × 9/20 × 9 = 225/180 - Add the two like fractions:
90/180 + 225/180 = 90 + 225/180 = 315/180 - 315/180 simplified gives 7/4
- So, 18/36 + 25/20 = 7/4
In mixed form: 13/4
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