Add 25/90 and 18/12
1st number: 25/90, 2nd number: 1 6/12
25/90 + 18/12 is 16/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
25/90 = 25 × 2/90 × 2 = 50/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
18/12 = 18 × 15/12 × 15 = 270/180 - Add the two like fractions:
50/180 + 270/180 = 50 + 270/180 = 320/180 - 320/180 simplified gives 16/9
- So, 25/90 + 18/12 = 16/9
In mixed form: 17/9
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