Add 81/28 and 42/9
1st number: 2 25/28, 2nd number: 4 6/9
81/28 + 42/9 is 635/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
81/28 = 81 × 9/28 × 9 = 729/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
42/9 = 42 × 28/9 × 28 = 1176/252 - Add the two like fractions:
729/252 + 1176/252 = 729 + 1176/252 = 1905/252 - 1905/252 simplified gives 635/84
- So, 81/28 + 42/9 = 635/84
In mixed form: 747/84
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