Add 81/36 and 20/28
1st number: 2 9/36, 2nd number: 20/28
81/36 + 20/28 is 83/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
81/36 = 81 × 7/36 × 7 = 567/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
20/28 = 20 × 9/28 × 9 = 180/252 - Add the two like fractions:
567/252 + 180/252 = 567 + 180/252 = 747/252 - 747/252 simplified gives 83/28
- So, 81/36 + 20/28 = 83/28
In mixed form: 227/28
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