Add 84/63 and 12/9
1st number: 1 21/63, 2nd number: 1 3/9
84/63 + 12/9 is 8/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
84/63 = 84 × 1/63 × 1 = 84/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
12/9 = 12 × 7/9 × 7 = 84/63 - Add the two like fractions:
84/63 + 84/63 = 84 + 84/63 = 168/63 - 168/63 simplified gives 8/3
- So, 84/63 + 12/9 = 8/3
In mixed form: 22/3
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