Add 28/30 and 42/84
28/30 + 42/84 is 43/30.
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,
42/84 = 42 × 5/84 × 5 = 210/420 - Add the two like fractions:
392/420 + 210/420 = 392 + 210/420 = 602/420 - 602/420 simplified gives 43/30
- So, 28/30 + 42/84 = 43/30
In mixed form: 113/30
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