Add 1/30 and 81/28
1st number: 1/30, 2nd number: 2 25/28
1/30 + 81/28 is 1229/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
1/30 = 1 × 14/30 × 14 = 14/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
81/28 = 81 × 15/28 × 15 = 1215/420 - Add the two like fractions:
14/420 + 1215/420 = 14 + 1215/420 = 1229/420 - So, 1/30 + 81/28 = 1229/420
In mixed form: 2389/420
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