Add 28/15 and 12/84
1st number: 1 13/15, 2nd number: 12/84
28/15 + 12/84 is 211/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
28/15 = 28 × 28/15 × 28 = 784/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
12/84 = 12 × 5/84 × 5 = 60/420 - Add the two like fractions:
784/420 + 60/420 = 784 + 60/420 = 844/420 - 844/420 simplified gives 211/105
- So, 28/15 + 12/84 = 211/105
In mixed form: 21/105
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