Add 15/4 and 30/9
1st number: 3 3/4, 2nd number: 3 3/9
15/4 + 30/9 is 85/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
15/4 = 15 × 9/4 × 9 = 135/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
30/9 = 30 × 4/9 × 4 = 120/36 - Add the two like fractions:
135/36 + 120/36 = 135 + 120/36 = 255/36 - 255/36 simplified gives 85/12
- So, 15/4 + 30/9 = 85/12
In mixed form: 71/12
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