Add 28/30 and 28/84
28/30 + 28/84 is 19/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
28/30 = 28 × 14/30 × 14 = 392/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
28/84 = 28 × 5/84 × 5 = 140/420 - Add the two like fractions:
392/420 + 140/420 = 392 + 140/420 = 532/420 - 532/420 simplified gives 19/15
- So, 28/30 + 28/84 = 19/15
In mixed form: 14/15
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