Add 28/84 and 12/5
1st number: 28/84, 2nd number: 2 2/5
28/84 + 12/5 is 41/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 5 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
28/84 = 28 × 5/84 × 5 = 140/420 - Likewise, for the 2nd fraction, since 5 × 84 = 420,
12/5 = 12 × 84/5 × 84 = 1008/420 - Add the two like fractions:
140/420 + 1008/420 = 140 + 1008/420 = 1148/420 - 1148/420 simplified gives 41/15
- So, 28/84 + 12/5 = 41/15
In mixed form: 211/15
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