Add 18/9 and 45/30
1st number: 2 0/9, 2nd number: 1 15/30
18/9 + 45/30 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
18/9 = 18 × 10/9 × 10 = 180/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
45/30 = 45 × 3/30 × 3 = 135/90 - Add the two like fractions:
180/90 + 135/90 = 180 + 135/90 = 315/90 - 315/90 simplified gives 7/2
- So, 18/9 + 45/30 = 7/2
In mixed form: 31/2
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