Add 28/42 and 81/4
1st number: 28/42, 2nd number: 20 1/4
28/42 + 81/4 is 251/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
28/42 = 28 × 2/42 × 2 = 56/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
81/4 = 81 × 21/4 × 21 = 1701/84 - Add the two like fractions:
56/84 + 1701/84 = 56 + 1701/84 = 1757/84 - 1757/84 simplified gives 251/12
- So, 28/42 + 81/4 = 251/12
In mixed form: 2011/12
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