Add 81/28 and 7/42
1st number: 2 25/28, 2nd number: 7/42
81/28 + 7/42 is 257/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
81/28 = 81 × 3/28 × 3 = 243/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
7/42 = 7 × 2/42 × 2 = 14/84 - Add the two like fractions:
243/84 + 14/84 = 243 + 14/84 = 257/84 - So, 81/28 + 7/42 = 257/84
In mixed form: 35/84
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