Add 81/45 and 81/84
1st number: 1 36/45, 2nd number: 81/84
81/45 + 81/84 is 387/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
81/45 = 81 × 28/45 × 28 = 2268/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
81/84 = 81 × 15/84 × 15 = 1215/1260 - Add the two like fractions:
2268/1260 + 1215/1260 = 2268 + 1215/1260 = 3483/1260 - 3483/1260 simplified gives 387/140
- So, 81/45 + 81/84 = 387/140
In mixed form: 2107/140
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