Add 75/12 and 21/84
1st number: 6 3/12, 2nd number: 21/84
75/12 + 21/84 is 13/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
75/12 = 75 × 7/12 × 7 = 525/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
21/84 = 21 × 1/84 × 1 = 21/84 - Add the two like fractions:
525/84 + 21/84 = 525 + 21/84 = 546/84 - 546/84 simplified gives 13/2
- So, 75/12 + 21/84 = 13/2
In mixed form: 61/2
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