Add 18/72 and 42/12
1st number: 18/72, 2nd number: 3 6/12
18/72 + 42/12 is 15/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 12 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
18/72 = 18 × 1/72 × 1 = 18/72 - Likewise, for the 2nd fraction, since 12 × 6 = 72,
42/12 = 42 × 6/12 × 6 = 252/72 - Add the two like fractions:
18/72 + 252/72 = 18 + 252/72 = 270/72 - 270/72 simplified gives 15/4
- So, 18/72 + 42/12 = 15/4
In mixed form: 33/4
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