Add 42/12 and 84/28
1st number: 3 6/12, 2nd number: 3 0/28
42/12 + 84/28 is 13/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
42/12 = 42 × 7/12 × 7 = 294/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
84/28 = 84 × 3/28 × 3 = 252/84 - Add the two like fractions:
294/84 + 252/84 = 294 + 252/84 = 546/84 - 546/84 simplified gives 13/2
- So, 42/12 + 84/28 = 13/2
In mixed form: 61/2
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