Add 72/28 and 42/12
1st number: 2 16/28, 2nd number: 3 6/12
72/28 + 42/12 is 85/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
72/28 = 72 × 3/28 × 3 = 216/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
42/12 = 42 × 7/12 × 7 = 294/84 - Add the two like fractions:
216/84 + 294/84 = 216 + 294/84 = 510/84 - 510/84 simplified gives 85/14
- So, 72/28 + 42/12 = 85/14
In mixed form: 61/14
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