Add 30/15 and 45/12
1st number: 2 0/15, 2nd number: 3 9/12
30/15 + 45/12 is 23/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
30/15 = 30 × 4/15 × 4 = 120/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
45/12 = 45 × 5/12 × 5 = 225/60 - Add the two like fractions:
120/60 + 225/60 = 120 + 225/60 = 345/60 - 345/60 simplified gives 23/4
- So, 30/15 + 45/12 = 23/4
In mixed form: 53/4
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