Add 84/63 and 45/12
1st number: 1 21/63, 2nd number: 3 9/12
84/63 + 45/12 is 61/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
84/63 = 84 × 4/63 × 4 = 336/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
45/12 = 45 × 21/12 × 21 = 945/252 - Add the two like fractions:
336/252 + 945/252 = 336 + 945/252 = 1281/252 - 1281/252 simplified gives 61/12
- So, 84/63 + 45/12 = 61/12
In mixed form: 51/12
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